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Finding the Fourth Proportional to 347,981.70, 521,972.55 and 237,389.70

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Solution

The fourth proportional to 347,981.70, 521,972.55 and 237,389.70 is: 356,084.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,981.70 : 521,972.55 = 237,389.70 : x
  2. Step 2: Convert to fraction form
    347,981.70/521,972.55 = 237,389.70/x
  3. Step 3: Cross multiply
    347,981.70x = 521,972.55 × 237,389.70
  4. Step 4: Simplify right side
    347,981.70x = 123,910,907,052.74
  5. Step 5: Solve for x
    x = 123,910,907,052.74/347,981.70
  6. Step 6: Final answer
    x = 356,084.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.