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Finding the Fourth Proportional to 658,598.46, 908,864.55 and 356,793.18

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Solution

The fourth proportional to 658,598.46, 908,864.55 and 356,793.18 is: 492,373.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,598.46 : 908,864.55 = 356,793.18 : x
  2. Step 2: Convert to fraction form
    658,598.46/908,864.55 = 356,793.18/x
  3. Step 3: Cross multiply
    658,598.46x = 908,864.55 × 356,793.18
  4. Step 4: Simplify right side
    658,598.46x = 324,276,672,983.77
  5. Step 5: Solve for x
    x = 324,276,672,983.77/658,598.46
  6. Step 6: Final answer
    x = 492,373.87

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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.