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Finding the Fourth Proportional to 622,134.40, 933,201.60 and 172,854.40

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Solution

The fourth proportional to 622,134.40, 933,201.60 and 172,854.40 is: 259,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,134.40 : 933,201.60 = 172,854.40 : x
  2. Step 2: Convert to fraction form
    622,134.40/933,201.60 = 172,854.40/x
  3. Step 3: Cross multiply
    622,134.40x = 933,201.60 × 172,854.40
  4. Step 4: Simplify right side
    622,134.40x = 161,308,002,647.04
  5. Step 5: Solve for x
    x = 161,308,002,647.04/622,134.40
  6. Step 6: Final answer
    x = 259,281.60

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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.