Home / 861,534.45-1,188,897.35-479,553.03

Finding the Fourth Proportional to 861,534.45, 1,188,897.35 and 479,553.03

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Solution

The fourth proportional to 861,534.45, 1,188,897.35 and 479,553.03 is: 661,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,534.45 : 1,188,897.35 = 479,553.03 : x
  2. Step 2: Convert to fraction form
    861,534.45/1,188,897.35 = 479,553.03/x
  3. Step 3: Cross multiply
    861,534.45x = 1,188,897.35 × 479,553.03
  4. Step 4: Simplify right side
    861,534.45x = 570,139,324,153.71
  5. Step 5: Solve for x
    x = 570,139,324,153.71/861,534.45
  6. Step 6: Final answer
    x = 661,771.94

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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.