Home / 861,348.50-1,188,660.93-479,465.50

Finding the Fourth Proportional to 861,348.50, 1,188,660.93 and 479,465.50

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Solution

The fourth proportional to 861,348.50, 1,188,660.93 and 479,465.50 is: 661,662.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,348.50 : 1,188,660.93 = 479,465.50 : x
  2. Step 2: Convert to fraction form
    861,348.50/1,188,660.93 = 479,465.50/x
  3. Step 3: Cross multiply
    861,348.50x = 1,188,660.93 × 479,465.50
  4. Step 4: Simplify right side
    861,348.50x = 569,921,901,189.61
  5. Step 5: Solve for x
    x = 569,921,901,189.61/861,348.50
  6. Step 6: Final answer
    x = 661,662.38

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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.