Home / 866,429.20-1,299,643.80-656,477.20

Finding the Fourth Proportional to 866,429.20, 1,299,643.80 and 656,477.20

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Solution

The fourth proportional to 866,429.20, 1,299,643.80 and 656,477.20 is: 984,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,429.20 : 1,299,643.80 = 656,477.20 : x
  2. Step 2: Convert to fraction form
    866,429.20/1,299,643.80 = 656,477.20/x
  3. Step 3: Cross multiply
    866,429.20x = 1,299,643.80 × 656,477.20
  4. Step 4: Simplify right side
    866,429.20x = 853,186,522,821.36
  5. Step 5: Solve for x
    x = 853,186,522,821.36/866,429.20
  6. Step 6: Final answer
    x = 984,715.80

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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.