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Finding the Fourth Proportional to 520,022.10, 780,033.15 and 441,290.10

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Solution

The fourth proportional to 520,022.10, 780,033.15 and 441,290.10 is: 661,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,022.10 : 780,033.15 = 441,290.10 : x
  2. Step 2: Convert to fraction form
    520,022.10/780,033.15 = 441,290.10/x
  3. Step 3: Cross multiply
    520,022.10x = 780,033.15 × 441,290.10
  4. Step 4: Simplify right side
    520,022.10x = 344,220,906,766.82
  5. Step 5: Solve for x
    x = 344,220,906,766.82/520,022.10
  6. Step 6: Final answer
    x = 661,935.15

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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.