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Finding the Fourth Proportional to 442,851.70, 664,277.55 and 265,267.30

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Solution

The fourth proportional to 442,851.70, 664,277.55 and 265,267.30 is: 397,900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,851.70 : 664,277.55 = 265,267.30 : x
  2. Step 2: Convert to fraction form
    442,851.70/664,277.55 = 265,267.30/x
  3. Step 3: Cross multiply
    442,851.70x = 664,277.55 × 265,267.30
  4. Step 4: Simplify right side
    442,851.70x = 176,211,112,139.12
  5. Step 5: Solve for x
    x = 176,211,112,139.12/442,851.70
  6. Step 6: Final answer
    x = 397,900.95

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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.