Home / 861,344.16-1,188,630.09-479,362.74

Finding the Fourth Proportional to 861,344.16, 1,188,630.09 and 479,362.74

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Solution

The fourth proportional to 861,344.16, 1,188,630.09 and 479,362.74 is: 661,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,344.16 : 1,188,630.09 = 479,362.74 : x
  2. Step 2: Convert to fraction form
    861,344.16/1,188,630.09 = 479,362.74/x
  3. Step 3: Cross multiply
    861,344.16x = 1,188,630.09 × 479,362.74
  4. Step 4: Simplify right side
    861,344.16x = 569,784,976,788.85
  5. Step 5: Solve for x
    x = 569,784,976,788.85/861,344.16
  6. Step 6: Final answer
    x = 661,506.75

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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.