Home / 866,308.20-1,195,821.88-522,156.42

Finding the Fourth Proportional to 866,308.20, 1,195,821.88 and 522,156.42

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Solution

The fourth proportional to 866,308.20, 1,195,821.88 and 522,156.42 is: 720,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,308.20 : 1,195,821.88 = 522,156.42 : x
  2. Step 2: Convert to fraction form
    866,308.20/1,195,821.88 = 522,156.42/x
  3. Step 3: Cross multiply
    866,308.20x = 1,195,821.88 × 522,156.42
  4. Step 4: Simplify right side
    866,308.20x = 624,406,071,818.47
  5. Step 5: Solve for x
    x = 624,406,071,818.47/866,308.20
  6. Step 6: Final answer
    x = 720,766.66

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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.