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Finding the Fourth Proportional to 548,422.70, 822,301.90 and 358,654.01

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Solution

The fourth proportional to 548,422.70, 822,301.90 and 358,654.01 is: 537,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,422.70 : 822,301.90 = 358,654.01 : x
  2. Step 2: Convert to fraction form
    548,422.70/822,301.90 = 358,654.01/x
  3. Step 3: Cross multiply
    548,422.70x = 822,301.90 × 358,654.01
  4. Step 4: Simplify right side
    548,422.70x = 294,921,873,865.62
  5. Step 5: Solve for x
    x = 294,921,873,865.62/548,422.70
  6. Step 6: Final answer
    x = 537,763.80

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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.