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Finding the Fourth Proportional to 442,726.70, 664,409.20 and 176,333.10

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Solution

The fourth proportional to 442,726.70, 664,409.20 and 176,333.10 is: 264,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,726.70 : 664,409.20 = 176,333.10 : x
  2. Step 2: Convert to fraction form
    442,726.70/664,409.20 = 176,333.10/x
  3. Step 3: Cross multiply
    442,726.70x = 664,409.20 × 176,333.10
  4. Step 4: Simplify right side
    442,726.70x = 117,157,333,904.52
  5. Step 5: Solve for x
    x = 117,157,333,904.52/442,726.70
  6. Step 6: Final answer
    x = 264,626.76

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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.