Home / 691,747.62-954,613.30-389,941.62

Finding the Fourth Proportional to 691,747.62, 954,613.30 and 389,941.62

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Solution

The fourth proportional to 691,747.62, 954,613.30 and 389,941.62 is: 538,120.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,747.62 : 954,613.30 = 389,941.62 : x
  2. Step 2: Convert to fraction form
    691,747.62/954,613.30 = 389,941.62/x
  3. Step 3: Cross multiply
    691,747.62x = 954,613.30 × 389,941.62
  4. Step 4: Simplify right side
    691,747.62x = 372,243,456,675.55
  5. Step 5: Solve for x
    x = 372,243,456,675.55/691,747.62
  6. Step 6: Final answer
    x = 538,120.33

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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.