Home / 861,408.60-1,188,733.50-503,712.60

Finding the Fourth Proportional to 861,408.60, 1,188,733.50 and 503,712.60

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Solution

The fourth proportional to 861,408.60, 1,188,733.50 and 503,712.60 is: 695,117.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,408.60 : 1,188,733.50 = 503,712.60 : x
  2. Step 2: Convert to fraction form
    861,408.60/1,188,733.50 = 503,712.60/x
  3. Step 3: Cross multiply
    861,408.60x = 1,188,733.50 × 503,712.60
  4. Step 4: Simplify right side
    861,408.60x = 598,780,041,992.10
  5. Step 5: Solve for x
    x = 598,780,041,992.10/861,408.60
  6. Step 6: Final answer
    x = 695,117.33

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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.