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Finding the Fourth Proportional to 616,712.80, 925,069.20 and 582,498.40

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Solution

The fourth proportional to 616,712.80, 925,069.20 and 582,498.40 is: 873,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,712.80 : 925,069.20 = 582,498.40 : x
  2. Step 2: Convert to fraction form
    616,712.80/925,069.20 = 582,498.40/x
  3. Step 3: Cross multiply
    616,712.80x = 925,069.20 × 582,498.40
  4. Step 4: Simplify right side
    616,712.80x = 538,851,328,889.28
  5. Step 5: Solve for x
    x = 538,851,328,889.28/616,712.80
  6. Step 6: Final answer
    x = 873,747.60

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Similar ratio
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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.