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Finding the Fourth Proportional to 418,096.96, 627,952.56 and 358,260.64

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Solution

The fourth proportional to 418,096.96, 627,952.56 and 358,260.64 is: 538,082.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,096.96 : 627,952.56 = 358,260.64 : x
  2. Step 2: Convert to fraction form
    418,096.96/627,952.56 = 358,260.64/x
  3. Step 3: Cross multiply
    418,096.96x = 627,952.56 × 358,260.64
  4. Step 4: Simplify right side
    418,096.96x = 224,970,686,035.24
  5. Step 5: Solve for x
    x = 224,970,686,035.24/418,096.96
  6. Step 6: Final answer
    x = 538,082.57

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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.