Home / 696,136.80-1,044,205.20-654,146.40

Finding the Fourth Proportional to 696,136.80, 1,044,205.20 and 654,146.40

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Solution

The fourth proportional to 696,136.80, 1,044,205.20 and 654,146.40 is: 981,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,136.80 : 1,044,205.20 = 654,146.40 : x
  2. Step 2: Convert to fraction form
    696,136.80/1,044,205.20 = 654,146.40/x
  3. Step 3: Cross multiply
    696,136.80x = 1,044,205.20 × 654,146.40
  4. Step 4: Simplify right side
    696,136.80x = 683,063,072,441.28
  5. Step 5: Solve for x
    x = 683,063,072,441.28/696,136.80
  6. Step 6: Final answer
    x = 981,219.60

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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.