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Finding the Fourth Proportional to 557,294.28, 769,301.58 and 376,251.48

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Solution

The fourth proportional to 557,294.28, 769,301.58 and 376,251.48 is: 519,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,294.28 : 769,301.58 = 376,251.48 : x
  2. Step 2: Convert to fraction form
    557,294.28/769,301.58 = 376,251.48/x
  3. Step 3: Cross multiply
    557,294.28x = 769,301.58 × 376,251.48
  4. Step 4: Simplify right side
    557,294.28x = 289,450,858,041.34
  5. Step 5: Solve for x
    x = 289,450,858,041.34/557,294.28
  6. Step 6: Final answer
    x = 519,386.02

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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.