Home / 866,515.40-1,195,687.07-499,112.04

Finding the Fourth Proportional to 866,515.40, 1,195,687.07 and 499,112.04

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Solution

The fourth proportional to 866,515.40, 1,195,687.07 and 499,112.04 is: 688,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,515.40 : 1,195,687.07 = 499,112.04 : x
  2. Step 2: Convert to fraction form
    866,515.40/1,195,687.07 = 499,112.04/x
  3. Step 3: Cross multiply
    866,515.40x = 1,195,687.07 × 499,112.04
  4. Step 4: Simplify right side
    866,515.40x = 596,781,816,569.26
  5. Step 5: Solve for x
    x = 596,781,816,569.26/866,515.40
  6. Step 6: Final answer
    x = 688,714.61

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1.5x scale

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.