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Finding the Fourth Proportional to 547,298.60, 820,947.90 and 460,693.40

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Solution

The fourth proportional to 547,298.60, 820,947.90 and 460,693.40 is: 691,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,298.60 : 820,947.90 = 460,693.40 : x
  2. Step 2: Convert to fraction form
    547,298.60/820,947.90 = 460,693.40/x
  3. Step 3: Cross multiply
    547,298.60x = 820,947.90 × 460,693.40
  4. Step 4: Simplify right side
    547,298.60x = 378,205,279,273.86
  5. Step 5: Solve for x
    x = 378,205,279,273.86/547,298.60
  6. Step 6: Final answer
    x = 691,040.10

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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.