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Finding the Fourth Proportional to 526,990.92, 790,612.35 and 172,005.60

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Solution

The fourth proportional to 526,990.92, 790,612.35 and 172,005.60 is: 258,049.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,990.92 : 790,612.35 = 172,005.60 : x
  2. Step 2: Convert to fraction form
    526,990.92/790,612.35 = 172,005.60/x
  3. Step 3: Cross multiply
    526,990.92x = 790,612.35 × 172,005.60
  4. Step 4: Simplify right side
    526,990.92x = 135,989,751,629.16
  5. Step 5: Solve for x
    x = 135,989,751,629.16/526,990.92
  6. Step 6: Final answer
    x = 258,049.52

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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.