Home / 861,257.72-1,188,527.06-479,277.96

Finding the Fourth Proportional to 861,257.72, 1,188,527.06 and 479,277.96

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Solution

The fourth proportional to 861,257.72, 1,188,527.06 and 479,277.96 is: 661,398.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,257.72 : 1,188,527.06 = 479,277.96 : x
  2. Step 2: Convert to fraction form
    861,257.72/1,188,527.06 = 479,277.96/x
  3. Step 3: Cross multiply
    861,257.72x = 1,188,527.06 × 479,277.96
  4. Step 4: Simplify right side
    861,257.72x = 569,634,824,721.60
  5. Step 5: Solve for x
    x = 569,634,824,721.60/861,257.72
  6. Step 6: Final answer
    x = 661,398.80

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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.