Home / 662,947.40-994,421.10-189,648.20

Finding the Fourth Proportional to 662,947.40, 994,421.10 and 189,648.20

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Solution

The fourth proportional to 662,947.40, 994,421.10 and 189,648.20 is: 284,472.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,947.40 : 994,421.10 = 189,648.20 : x
  2. Step 2: Convert to fraction form
    662,947.40/994,421.10 = 189,648.20/x
  3. Step 3: Cross multiply
    662,947.40x = 994,421.10 × 189,648.20
  4. Step 4: Simplify right side
    662,947.40x = 188,590,171,657.02
  5. Step 5: Solve for x
    x = 188,590,171,657.02/662,947.40
  6. Step 6: Final answer
    x = 284,472.30

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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.