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Finding the Fourth Proportional to 438,562.76, 605,216.66 and 237,358.76

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Solution

The fourth proportional to 438,562.76, 605,216.66 and 237,358.76 is: 327,555.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,562.76 : 605,216.66 = 237,358.76 : x
  2. Step 2: Convert to fraction form
    438,562.76/605,216.66 = 237,358.76/x
  3. Step 3: Cross multiply
    438,562.76x = 605,216.66 × 237,358.76
  4. Step 4: Simplify right side
    438,562.76x = 143,653,475,948.94
  5. Step 5: Solve for x
    x = 143,653,475,948.94/438,562.76
  6. Step 6: Final answer
    x = 327,555.12

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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.