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Finding the Fourth Proportional to 527,938.35, 728,545.43 and 298,491.68

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Solution

The fourth proportional to 527,938.35, 728,545.43 and 298,491.68 is: 411,913.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,938.35 : 728,545.43 = 298,491.68 : x
  2. Step 2: Convert to fraction form
    527,938.35/728,545.43 = 298,491.68/x
  3. Step 3: Cross multiply
    527,938.35x = 728,545.43 × 298,491.68
  4. Step 4: Simplify right side
    527,938.35x = 217,464,744,221.84
  5. Step 5: Solve for x
    x = 217,464,744,221.84/527,938.35
  6. Step 6: Final answer
    x = 411,913.14

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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.