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Finding the Fourth Proportional to 454,314.40, 681,471.60 and 348,026.20

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Solution

The fourth proportional to 454,314.40, 681,471.60 and 348,026.20 is: 522,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,314.40 : 681,471.60 = 348,026.20 : x
  2. Step 2: Convert to fraction form
    454,314.40/681,471.60 = 348,026.20/x
  3. Step 3: Cross multiply
    454,314.40x = 681,471.60 × 348,026.20
  4. Step 4: Simplify right side
    454,314.40x = 237,169,971,355.92
  5. Step 5: Solve for x
    x = 237,169,971,355.92/454,314.40
  6. Step 6: Final answer
    x = 522,039.30

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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.