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Finding the Fourth Proportional to 663,151.56, 994,019.14 and 378,228.59

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Solution

The fourth proportional to 663,151.56, 994,019.14 and 378,228.59 is: 566,938.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,151.56 : 994,019.14 = 378,228.59 : x
  2. Step 2: Convert to fraction form
    663,151.56/994,019.14 = 378,228.59/x
  3. Step 3: Cross multiply
    663,151.56x = 994,019.14 × 378,228.59
  4. Step 4: Simplify right side
    663,151.56x = 375,966,456,985.47
  5. Step 5: Solve for x
    x = 375,966,456,985.47/663,151.56
  6. Step 6: Final answer
    x = 566,938.97

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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.