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Finding the Fourth Proportional to 653,818.81, 980,726.77 and 174,046.72

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Solution

The fourth proportional to 653,818.81, 980,726.77 and 174,046.72 is: 261,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,818.81 : 980,726.77 = 174,046.72 : x
  2. Step 2: Convert to fraction form
    653,818.81/980,726.77 = 174,046.72/x
  3. Step 3: Cross multiply
    653,818.81x = 980,726.77 × 174,046.72
  4. Step 4: Simplify right side
    653,818.81x = 170,692,277,534.69
  5. Step 5: Solve for x
    x = 170,692,277,534.69/653,818.81
  6. Step 6: Final answer
    x = 261,069.70

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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.