Home / 986,728.20-1,361,689.02-534,019.16

Finding the Fourth Proportional to 986,728.20, 1,361,689.02 and 534,019.16

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Solution

The fourth proportional to 986,728.20, 1,361,689.02 and 534,019.16 is: 736,948.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,728.20 : 1,361,689.02 = 534,019.16 : x
  2. Step 2: Convert to fraction form
    986,728.20/1,361,689.02 = 534,019.16/x
  3. Step 3: Cross multiply
    986,728.20x = 1,361,689.02 × 534,019.16
  4. Step 4: Simplify right side
    986,728.20x = 727,168,026,641.62
  5. Step 5: Solve for x
    x = 727,168,026,641.62/986,728.20
  6. Step 6: Final answer
    x = 736,948.66

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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.