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Finding the Fourth Proportional to 526,789.96, 726,970.13 and 285,072.53

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Solution

The fourth proportional to 526,789.96, 726,970.13 and 285,072.53 is: 393,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,789.96 : 726,970.13 = 285,072.53 : x
  2. Step 2: Convert to fraction form
    526,789.96/726,970.13 = 285,072.53/x
  3. Step 3: Cross multiply
    526,789.96x = 726,970.13 × 285,072.53
  4. Step 4: Simplify right side
    526,789.96x = 207,239,218,412.03
  5. Step 5: Solve for x
    x = 207,239,218,412.03/526,789.96
  6. Step 6: Final answer
    x = 393,400.09

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1.5x scale

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.