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Finding the Fourth Proportional to 554,964.40, 832,082.10 and 217,801.90

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Solution

The fourth proportional to 554,964.40, 832,082.10 and 217,801.90 is: 326,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,964.40 : 832,082.10 = 217,801.90 : x
  2. Step 2: Convert to fraction form
    554,964.40/832,082.10 = 217,801.90/x
  3. Step 3: Cross multiply
    554,964.40x = 832,082.10 × 217,801.90
  4. Step 4: Simplify right side
    554,964.40x = 181,229,062,335.99
  5. Step 5: Solve for x
    x = 181,229,062,335.99/554,964.40
  6. Step 6: Final answer
    x = 326,559.80

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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.