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Finding the Fourth Proportional to 543,801.90, 750,419.72 and 314,337.33

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Solution

The fourth proportional to 543,801.90, 750,419.72 and 314,337.33 is: 433,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,801.90 : 750,419.72 = 314,337.33 : x
  2. Step 2: Convert to fraction form
    543,801.90/750,419.72 = 314,337.33/x
  3. Step 3: Cross multiply
    543,801.90x = 750,419.72 × 314,337.33
  4. Step 4: Simplify right side
    543,801.90x = 235,884,931,997.71
  5. Step 5: Solve for x
    x = 235,884,931,997.71/543,801.90
  6. Step 6: Final answer
    x = 433,769.96

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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.