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Finding the Fourth Proportional to 662,989.34, 914,685.39 and 433,677.53

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Solution

The fourth proportional to 662,989.34, 914,685.39 and 433,677.53 is: 598,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,989.34 : 914,685.39 = 433,677.53 : x
  2. Step 2: Convert to fraction form
    662,989.34/914,685.39 = 433,677.53/x
  3. Step 3: Cross multiply
    662,989.34x = 914,685.39 × 433,677.53
  4. Step 4: Simplify right side
    662,989.34x = 396,678,496,088.86
  5. Step 5: Solve for x
    x = 396,678,496,088.86/662,989.34
  6. Step 6: Final answer
    x = 598,318.07

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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.