Home / 981,706.80-1,472,560.20-554,804.40

Finding the Fourth Proportional to 981,706.80, 1,472,560.20 and 554,804.40

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Solution

The fourth proportional to 981,706.80, 1,472,560.20 and 554,804.40 is: 832,206.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,706.80 : 1,472,560.20 = 554,804.40 : x
  2. Step 2: Convert to fraction form
    981,706.80/1,472,560.20 = 554,804.40/x
  3. Step 3: Cross multiply
    981,706.80x = 1,472,560.20 × 554,804.40
  4. Step 4: Simplify right side
    981,706.80x = 816,982,878,224.88
  5. Step 5: Solve for x
    x = 816,982,878,224.88/981,706.80
  6. Step 6: Final answer
    x = 832,206.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.