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Finding the Fourth Proportional to 986,632, 1,361,562 and 533,932.72

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Solution

The fourth proportional to 986,632, 1,361,562 and 533,932.72 is: 736,832.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,632 : 1,361,562 = 533,932.72 : x
  2. Step 2: Convert to fraction form
    986,632/1,361,562 = 533,932.72/x
  3. Step 3: Cross multiply
    986,632x = 1,361,562 × 533,932.72
  4. Step 4: Simplify right side
    986,632x = 726,982,502,108.64
  5. Step 5: Solve for x
    x = 726,982,502,108.64/986,632
  6. Step 6: Final answer
    x = 736,832.48

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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.