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Finding the Fourth Proportional to 339,557.60, 508,753.20 and 161,681.60

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Solution

The fourth proportional to 339,557.60, 508,753.20 and 161,681.60 is: 242,244.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,557.60 : 508,753.20 = 161,681.60 : x
  2. Step 2: Convert to fraction form
    339,557.60/508,753.20 = 161,681.60/x
  3. Step 3: Cross multiply
    339,557.60x = 508,753.20 × 161,681.60
  4. Step 4: Simplify right side
    339,557.60x = 82,256,031,381.12
  5. Step 5: Solve for x
    x = 82,256,031,381.12/339,557.60
  6. Step 6: Final answer
    x = 242,244.71

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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.