Home / 938,539.70-1,407,809.53-432,951.11

Finding the Fourth Proportional to 938,539.70, 1,407,809.53 and 432,951.11

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Solution

The fourth proportional to 938,539.70, 1,407,809.53 and 432,951.11 is: 649,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,539.70 : 1,407,809.53 = 432,951.11 : x
  2. Step 2: Convert to fraction form
    938,539.70/1,407,809.53 = 432,951.11/x
  3. Step 3: Cross multiply
    938,539.70x = 1,407,809.53 × 432,951.11
  4. Step 4: Simplify right side
    938,539.70x = 609,512,690,560.65
  5. Step 5: Solve for x
    x = 609,512,690,560.65/938,539.70
  6. Step 6: Final answer
    x = 649,426.65

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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.