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Finding the Fourth Proportional to 415,329.96, 573,404.34 and 272,339.40

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Solution

The fourth proportional to 415,329.96, 573,404.34 and 272,339.40 is: 375,991.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,329.96 : 573,404.34 = 272,339.40 : x
  2. Step 2: Convert to fraction form
    415,329.96/573,404.34 = 272,339.40/x
  3. Step 3: Cross multiply
    415,329.96x = 573,404.34 × 272,339.40
  4. Step 4: Simplify right side
    415,329.96x = 156,160,593,913.00
  5. Step 5: Solve for x
    x = 156,160,593,913.00/415,329.96
  6. Step 6: Final answer
    x = 375,991.64

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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.