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Finding the Fourth Proportional to 605,092,311.60, 907,638,467.40 and 553,436,246.40

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Solution

The fourth proportional to 605,092,311.60, 907,638,467.40 and 553,436,246.40 is: 830,154,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,092,311.60 : 907,638,467.40 = 553,436,246.40 : x
  2. Step 2: Convert to fraction form
    605,092,311.60/907,638,467.40 = 553,436,246.40/x
  3. Step 3: Cross multiply
    605,092,311.60x = 907,638,467.40 × 553,436,246.40
  4. Step 4: Simplify right side
    605,092,311.60x = 502,320,026,486,104,704
  5. Step 5: Solve for x
    x = 502,320,026,486,104,704/605,092,311.60
  6. Step 6: Final answer
    x = 830,154,369.60

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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.