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Finding the Fourth Proportional to 531,092.89, 732,898.95 and 289,377.46

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Solution

The fourth proportional to 531,092.89, 732,898.95 and 289,377.46 is: 399,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,092.89 : 732,898.95 = 289,377.46 : x
  2. Step 2: Convert to fraction form
    531,092.89/732,898.95 = 289,377.46/x
  3. Step 3: Cross multiply
    531,092.89x = 732,898.95 × 289,377.46
  4. Step 4: Simplify right side
    531,092.89x = 212,084,436,587.67
  5. Step 5: Solve for x
    x = 212,084,436,587.67/531,092.89
  6. Step 6: Final answer
    x = 399,335.86

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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.