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Finding the Fourth Proportional to 576,022.60, 864,033.90 and 434,096.20

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Solution

The fourth proportional to 576,022.60, 864,033.90 and 434,096.20 is: 651,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,022.60 : 864,033.90 = 434,096.20 : x
  2. Step 2: Convert to fraction form
    576,022.60/864,033.90 = 434,096.20/x
  3. Step 3: Cross multiply
    576,022.60x = 864,033.90 × 434,096.20
  4. Step 4: Simplify right side
    576,022.60x = 375,073,832,661.18
  5. Step 5: Solve for x
    x = 375,073,832,661.18/576,022.60
  6. Step 6: Final answer
    x = 651,144.30

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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.