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Finding the Fourth Proportional to 704,514.97, 972,322.28 and 394,535.60

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Solution

The fourth proportional to 704,514.97, 972,322.28 and 394,535.60 is: 544,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,514.97 : 972,322.28 = 394,535.60 : x
  2. Step 2: Convert to fraction form
    704,514.97/972,322.28 = 394,535.60/x
  3. Step 3: Cross multiply
    704,514.97x = 972,322.28 × 394,535.60
  4. Step 4: Simplify right side
    704,514.97x = 383,615,754,133.17
  5. Step 5: Solve for x
    x = 383,615,754,133.17/704,514.97
  6. Step 6: Final answer
    x = 544,510.44

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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.