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Finding the Fourth Proportional to 535,387.48, 738,832.65 and 331,397.74

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Solution

The fourth proportional to 535,387.48, 738,832.65 and 331,397.74 is: 457,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,387.48 : 738,832.65 = 331,397.74 : x
  2. Step 2: Convert to fraction form
    535,387.48/738,832.65 = 331,397.74/x
  3. Step 3: Cross multiply
    535,387.48x = 738,832.65 × 331,397.74
  4. Step 4: Simplify right side
    535,387.48x = 244,847,470,448.21
  5. Step 5: Solve for x
    x = 244,847,470,448.21/535,387.48
  6. Step 6: Final answer
    x = 457,327.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.