Home / 986,721.70-1,361,680.05-534,012.66

Finding the Fourth Proportional to 986,721.70, 1,361,680.05 and 534,012.66

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Solution

The fourth proportional to 986,721.70, 1,361,680.05 and 534,012.66 is: 736,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,721.70 : 1,361,680.05 = 534,012.66 : x
  2. Step 2: Convert to fraction form
    986,721.70/1,361,680.05 = 534,012.66/x
  3. Step 3: Cross multiply
    986,721.70x = 1,361,680.05 × 534,012.66
  4. Step 4: Simplify right side
    986,721.70x = 727,154,385,569.43
  5. Step 5: Solve for x
    x = 727,154,385,569.43/986,721.70
  6. Step 6: Final answer
    x = 736,939.69

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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.