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Finding the Fourth Proportional to 478,264.34, 660,034.63 and 263,404.34

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Solution

The fourth proportional to 478,264.34, 660,034.63 and 263,404.34 is: 363,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,264.34 : 660,034.63 = 263,404.34 : x
  2. Step 2: Convert to fraction form
    478,264.34/660,034.63 = 263,404.34/x
  3. Step 3: Cross multiply
    478,264.34x = 660,034.63 × 263,404.34
  4. Step 4: Simplify right side
    478,264.34x = 173,855,986,092.29
  5. Step 5: Solve for x
    x = 173,855,986,092.29/478,264.34
  6. Step 6: Final answer
    x = 363,514.43

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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.