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Finding the Fourth Proportional to 538,170.48, 806,011.56 and 519,508.08

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Solution

The fourth proportional to 538,170.48, 806,011.56 and 519,508.08 is: 778,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,170.48 : 806,011.56 = 519,508.08 : x
  2. Step 2: Convert to fraction form
    538,170.48/806,011.56 = 519,508.08/x
  3. Step 3: Cross multiply
    538,170.48x = 806,011.56 × 519,508.08
  4. Step 4: Simplify right side
    538,170.48x = 418,729,517,993.41
  5. Step 5: Solve for x
    x = 418,729,517,993.41/538,170.48
  6. Step 6: Final answer
    x = 778,061.10

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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.