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Finding the Fourth Proportional to 538,171.48, 806,013.06 and 519,509.08

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Solution

The fourth proportional to 538,171.48, 806,013.06 and 519,509.08 is: 778,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,171.48 : 806,013.06 = 519,509.08 : x
  2. Step 2: Convert to fraction form
    538,171.48/806,013.06 = 519,509.08/x
  3. Step 3: Cross multiply
    538,171.48x = 806,013.06 × 519,509.08
  4. Step 4: Simplify right side
    538,171.48x = 418,731,103,268.59
  5. Step 5: Solve for x
    x = 418,731,103,268.59/538,171.48
  6. Step 6: Final answer
    x = 778,062.60

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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.