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Finding the Fourth Proportional to 488,498.40, 732,721.68 and 156,048.48

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Solution

The fourth proportional to 488,498.40, 732,721.68 and 156,048.48 is: 234,064.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,498.40 : 732,721.68 = 156,048.48 : x
  2. Step 2: Convert to fraction form
    488,498.40/732,721.68 = 156,048.48/x
  3. Step 3: Cross multiply
    488,498.40x = 732,721.68 × 156,048.48
  4. Step 4: Simplify right side
    488,498.40x = 114,340,104,427.05
  5. Step 5: Solve for x
    x = 114,340,104,427.05/488,498.40
  6. Step 6: Final answer
    x = 234,064.44

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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.