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Finding the Fourth Proportional to 622,659.60, 933,989.40 and 410,083.20

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Solution

The fourth proportional to 622,659.60, 933,989.40 and 410,083.20 is: 615,124.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,659.60 : 933,989.40 = 410,083.20 : x
  2. Step 2: Convert to fraction form
    622,659.60/933,989.40 = 410,083.20/x
  3. Step 3: Cross multiply
    622,659.60x = 933,989.40 × 410,083.20
  4. Step 4: Simplify right side
    622,659.60x = 383,013,361,918.08
  5. Step 5: Solve for x
    x = 383,013,361,918.08/622,659.60
  6. Step 6: Final answer
    x = 615,124.80

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Similar ratio
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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.