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Finding the Fourth Proportional to 473,005.60, 709,508.40 and 248,279.20

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Solution

The fourth proportional to 473,005.60, 709,508.40 and 248,279.20 is: 372,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,005.60 : 709,508.40 = 248,279.20 : x
  2. Step 2: Convert to fraction form
    473,005.60/709,508.40 = 248,279.20/x
  3. Step 3: Cross multiply
    473,005.60x = 709,508.40 × 248,279.20
  4. Step 4: Simplify right side
    473,005.60x = 176,156,177,945.28
  5. Step 5: Solve for x
    x = 176,156,177,945.28/473,005.60
  6. Step 6: Final answer
    x = 372,418.80

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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.