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Finding the Fourth Proportional to 554,958.78, 832,115.10 and 217,604.01

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Solution

The fourth proportional to 554,958.78, 832,115.10 and 217,604.01 is: 326,279.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,958.78 : 832,115.10 = 217,604.01 : x
  2. Step 2: Convert to fraction form
    554,958.78/832,115.10 = 217,604.01/x
  3. Step 3: Cross multiply
    554,958.78x = 832,115.10 × 217,604.01
  4. Step 4: Simplify right side
    554,958.78x = 181,071,582,541.55
  5. Step 5: Solve for x
    x = 181,071,582,541.55/554,958.78
  6. Step 6: Final answer
    x = 326,279.34

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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.