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Finding the Fourth Proportional to 691,454.25, 954,206.87 and 373,502.25

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Solution

The fourth proportional to 691,454.25, 954,206.87 and 373,502.25 is: 515,433.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,454.25 : 954,206.87 = 373,502.25 : x
  2. Step 2: Convert to fraction form
    691,454.25/954,206.87 = 373,502.25/x
  3. Step 3: Cross multiply
    691,454.25x = 954,206.87 × 373,502.25
  4. Step 4: Simplify right side
    691,454.25x = 356,398,411,042.95
  5. Step 5: Solve for x
    x = 356,398,411,042.95/691,454.25
  6. Step 6: Final answer
    x = 515,433.11

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.