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Finding the Fourth Proportional to 530,767.54, 732,489.96 and 399,710.50

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Solution

The fourth proportional to 530,767.54, 732,489.96 and 399,710.50 is: 551,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,767.54 : 732,489.96 = 399,710.50 : x
  2. Step 2: Convert to fraction form
    530,767.54/732,489.96 = 399,710.50/x
  3. Step 3: Cross multiply
    530,767.54x = 732,489.96 × 399,710.50
  4. Step 4: Simplify right side
    530,767.54x = 292,783,928,156.58
  5. Step 5: Solve for x
    x = 292,783,928,156.58/530,767.54
  6. Step 6: Final answer
    x = 551,623.65

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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.