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Finding the Fourth Proportional to 563,195.54, 777,265.56 and 321,514.41

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Solution

The fourth proportional to 563,195.54, 777,265.56 and 321,514.41 is: 443,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,195.54 : 777,265.56 = 321,514.41 : x
  2. Step 2: Convert to fraction form
    563,195.54/777,265.56 = 321,514.41/x
  3. Step 3: Cross multiply
    563,195.54x = 777,265.56 × 321,514.41
  4. Step 4: Simplify right side
    563,195.54x = 249,902,077,936.72
  5. Step 5: Solve for x
    x = 249,902,077,936.72/563,195.54
  6. Step 6: Final answer
    x = 443,721.70

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1.5x scale

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.