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Finding the Fourth Proportional to 526,987.92, 790,607.85 and 172,002.60

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Solution

The fourth proportional to 526,987.92, 790,607.85 and 172,002.60 is: 258,045.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,987.92 : 790,607.85 = 172,002.60 : x
  2. Step 2: Convert to fraction form
    526,987.92/790,607.85 = 172,002.60/x
  3. Step 3: Cross multiply
    526,987.92x = 790,607.85 × 172,002.60
  4. Step 4: Simplify right side
    526,987.92x = 135,986,605,780.41
  5. Step 5: Solve for x
    x = 135,986,605,780.41/526,987.92
  6. Step 6: Final answer
    x = 258,045.02

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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.