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Finding the Fourth Proportional to 577,040.60, 865,560.90 and 519,959.90

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Solution

The fourth proportional to 577,040.60, 865,560.90 and 519,959.90 is: 779,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,040.60 : 865,560.90 = 519,959.90 : x
  2. Step 2: Convert to fraction form
    577,040.60/865,560.90 = 519,959.90/x
  3. Step 3: Cross multiply
    577,040.60x = 865,560.90 × 519,959.90
  4. Step 4: Simplify right side
    577,040.60x = 450,056,959,007.91
  5. Step 5: Solve for x
    x = 450,056,959,007.91/577,040.60
  6. Step 6: Final answer
    x = 779,939.85

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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.