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Finding the Fourth Proportional to 622,883.40, 934,325.10 and 465,419.40

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Solution

The fourth proportional to 622,883.40, 934,325.10 and 465,419.40 is: 698,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,883.40 : 934,325.10 = 465,419.40 : x
  2. Step 2: Convert to fraction form
    622,883.40/934,325.10 = 465,419.40/x
  3. Step 3: Cross multiply
    622,883.40x = 934,325.10 × 465,419.40
  4. Step 4: Simplify right side
    622,883.40x = 434,853,027,446.94
  5. Step 5: Solve for x
    x = 434,853,027,446.94/622,883.40
  6. Step 6: Final answer
    x = 698,129.10

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Double scale
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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.