Home / 579,488,546.40-869,232,819.60-191,371,279.20

Finding the Fourth Proportional to 579,488,546.40, 869,232,819.60 and 191,371,279.20

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Solution

The fourth proportional to 579,488,546.40, 869,232,819.60 and 191,371,279.20 is: 287,056,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,488,546.40 : 869,232,819.60 = 191,371,279.20 : x
  2. Step 2: Convert to fraction form
    579,488,546.40/869,232,819.60 = 191,371,279.20/x
  3. Step 3: Cross multiply
    579,488,546.40x = 869,232,819.60 × 191,371,279.20
  4. Step 4: Simplify right side
    579,488,546.40x = 166,346,196,609,474,816
  5. Step 5: Solve for x
    x = 166,346,196,609,474,816/579,488,546.40
  6. Step 6: Final answer
    x = 287,056,918.80

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.