Home / 861,444.60-1,292,166.90-389,052.60

Finding the Fourth Proportional to 861,444.60, 1,292,166.90 and 389,052.60

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Solution

The fourth proportional to 861,444.60, 1,292,166.90 and 389,052.60 is: 583,578.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,444.60 : 1,292,166.90 = 389,052.60 : x
  2. Step 2: Convert to fraction form
    861,444.60/1,292,166.90 = 389,052.60/x
  3. Step 3: Cross multiply
    861,444.60x = 1,292,166.90 × 389,052.60
  4. Step 4: Simplify right side
    861,444.60x = 502,720,892,078.94
  5. Step 5: Solve for x
    x = 502,720,892,078.94/861,444.60
  6. Step 6: Final answer
    x = 583,578.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.