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Finding the Fourth Proportional to 867,616.80, 1,301,425.20 and 548,752.20

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Solution

The fourth proportional to 867,616.80, 1,301,425.20 and 548,752.20 is: 823,128.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,616.80 : 1,301,425.20 = 548,752.20 : x
  2. Step 2: Convert to fraction form
    867,616.80/1,301,425.20 = 548,752.20/x
  3. Step 3: Cross multiply
    867,616.80x = 1,301,425.20 × 548,752.20
  4. Step 4: Simplify right side
    867,616.80x = 714,159,941,635.44
  5. Step 5: Solve for x
    x = 714,159,941,635.44/867,616.80
  6. Step 6: Final answer
    x = 823,128.30

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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.