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Finding the Fourth Proportional to 622,916.40, 934,374.60 and 465,452.40

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Solution

The fourth proportional to 622,916.40, 934,374.60 and 465,452.40 is: 698,178.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,916.40 : 934,374.60 = 465,452.40 : x
  2. Step 2: Convert to fraction form
    622,916.40/934,374.60 = 465,452.40/x
  3. Step 3: Cross multiply
    622,916.40x = 934,374.60 × 465,452.40
  4. Step 4: Simplify right side
    622,916.40x = 434,906,900,069.04
  5. Step 5: Solve for x
    x = 434,906,900,069.04/622,916.40
  6. Step 6: Final answer
    x = 698,178.60

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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.