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Finding the Fourth Proportional to 502,283.52, 753,424.64 and 128,306.56

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Solution

The fourth proportional to 502,283.52, 753,424.64 and 128,306.56 is: 192,459.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,283.52 : 753,424.64 = 128,306.56 : x
  2. Step 2: Convert to fraction form
    502,283.52/753,424.64 = 128,306.56/x
  3. Step 3: Cross multiply
    502,283.52x = 753,424.64 × 128,306.56
  4. Step 4: Simplify right side
    502,283.52x = 96,669,323,777.64
  5. Step 5: Solve for x
    x = 96,669,323,777.64/502,283.52
  6. Step 6: Final answer
    x = 192,459.68

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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.