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Finding the Fourth Proportional to 531,691.67, 733,319.65 and 340,722.83

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Solution

The fourth proportional to 531,691.67, 733,319.65 and 340,722.83 is: 469,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,691.67 : 733,319.65 = 340,722.83 : x
  2. Step 2: Convert to fraction form
    531,691.67/733,319.65 = 340,722.83/x
  3. Step 3: Cross multiply
    531,691.67x = 733,319.65 × 340,722.83
  4. Step 4: Simplify right side
    531,691.67x = 249,858,746,442.61
  5. Step 5: Solve for x
    x = 249,858,746,442.61/531,691.67
  6. Step 6: Final answer
    x = 469,931.66

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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.