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Finding the Fourth Proportional to 347,599.20, 521,593.20 and 147,885.60

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Solution

The fourth proportional to 347,599.20, 521,593.20 and 147,885.60 is: 221,911.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,599.20 : 521,593.20 = 147,885.60 : x
  2. Step 2: Convert to fraction form
    347,599.20/521,593.20 = 147,885.60/x
  3. Step 3: Cross multiply
    347,599.20x = 521,593.20 × 147,885.60
  4. Step 4: Simplify right side
    347,599.20x = 77,136,123,337.92
  5. Step 5: Solve for x
    x = 77,136,123,337.92/347,599.20
  6. Step 6: Final answer
    x = 221,911.11

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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.