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Finding the Fourth Proportional to 704,891.72, 972,751.56 and 382,601.88

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Solution

The fourth proportional to 704,891.72, 972,751.56 and 382,601.88 is: 527,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,891.72 : 972,751.56 = 382,601.88 : x
  2. Step 2: Convert to fraction form
    704,891.72/972,751.56 = 382,601.88/x
  3. Step 3: Cross multiply
    704,891.72x = 972,751.56 × 382,601.88
  4. Step 4: Simplify right side
    704,891.72x = 372,176,575,628.93
  5. Step 5: Solve for x
    x = 372,176,575,628.93/704,891.72
  6. Step 6: Final answer
    x = 527,991.13

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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.