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Finding the Fourth Proportional to 622,867.60, 934,301.40 and 611,057.80

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Solution

The fourth proportional to 622,867.60, 934,301.40 and 611,057.80 is: 916,586.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,867.60 : 934,301.40 = 611,057.80 : x
  2. Step 2: Convert to fraction form
    622,867.60/934,301.40 = 611,057.80/x
  3. Step 3: Cross multiply
    622,867.60x = 934,301.40 × 611,057.80
  4. Step 4: Simplify right side
    622,867.60x = 570,912,158,020.92
  5. Step 5: Solve for x
    x = 570,912,158,020.92/622,867.60
  6. Step 6: Final answer
    x = 916,586.70

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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.