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Finding the Fourth Proportional to 526,498.52, 789,813.36 and 171,417.20

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Solution

The fourth proportional to 526,498.52, 789,813.36 and 171,417.20 is: 257,147.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,498.52 : 789,813.36 = 171,417.20 : x
  2. Step 2: Convert to fraction form
    526,498.52/789,813.36 = 171,417.20/x
  3. Step 3: Cross multiply
    526,498.52x = 789,813.36 × 171,417.20
  4. Step 4: Simplify right side
    526,498.52x = 135,387,594,693.79
  5. Step 5: Solve for x
    x = 135,387,594,693.79/526,498.52
  6. Step 6: Final answer
    x = 257,147.15

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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.