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Finding the Fourth Proportional to 532,974.60, 735,514.02 and 318,072.96

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Solution

The fourth proportional to 532,974.60, 735,514.02 and 318,072.96 is: 438,946.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,974.60 : 735,514.02 = 318,072.96 : x
  2. Step 2: Convert to fraction form
    532,974.60/735,514.02 = 318,072.96/x
  3. Step 3: Cross multiply
    532,974.60x = 735,514.02 × 318,072.96
  4. Step 4: Simplify right side
    532,974.60x = 233,947,121,462.90
  5. Step 5: Solve for x
    x = 233,947,121,462.90/532,974.60
  6. Step 6: Final answer
    x = 438,946.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.