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Finding the Fourth Proportional to 566,407.60, 847,643.10 and 389,260.60

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Solution

The fourth proportional to 566,407.60, 847,643.10 and 389,260.60 is: 582,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,407.60 : 847,643.10 = 389,260.60 : x
  2. Step 2: Convert to fraction form
    566,407.60/847,643.10 = 389,260.60/x
  3. Step 3: Cross multiply
    566,407.60x = 847,643.10 × 389,260.60
  4. Step 4: Simplify right side
    566,407.60x = 329,954,061,691.86
  5. Step 5: Solve for x
    x = 329,954,061,691.86/566,407.60
  6. Step 6: Final answer
    x = 582,538.20

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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.