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Finding the Fourth Proportional to 584,321.80, 876,417.90 and 163,640.20

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Solution

The fourth proportional to 584,321.80, 876,417.90 and 163,640.20 is: 245,442.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,321.80 : 876,417.90 = 163,640.20 : x
  2. Step 2: Convert to fraction form
    584,321.80/876,417.90 = 163,640.20/x
  3. Step 3: Cross multiply
    584,321.80x = 876,417.90 × 163,640.20
  4. Step 4: Simplify right side
    584,321.80x = 143,417,200,439.58
  5. Step 5: Solve for x
    x = 143,417,200,439.58/584,321.80
  6. Step 6: Final answer
    x = 245,442.15

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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.