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Finding the Fourth Proportional to 704,877.46, 972,728.43 and 382,587.55

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Solution

The fourth proportional to 704,877.46, 972,728.43 and 382,587.55 is: 527,969.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,877.46 : 972,728.43 = 382,587.55 : x
  2. Step 2: Convert to fraction form
    704,877.46/972,728.43 = 382,587.55/x
  3. Step 3: Cross multiply
    704,877.46x = 972,728.43 × 382,587.55
  4. Step 4: Simplify right side
    704,877.46x = 372,153,786,849.05
  5. Step 5: Solve for x
    x = 372,153,786,849.05/704,877.46
  6. Step 6: Final answer
    x = 527,969.48

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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.