Home / 837,149.10-1,155,233.90-455,176.20

Finding the Fourth Proportional to 837,149.10, 1,155,233.90 and 455,176.20

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Solution

The fourth proportional to 837,149.10, 1,155,233.90 and 455,176.20 is: 628,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,149.10 : 1,155,233.90 = 455,176.20 : x
  2. Step 2: Convert to fraction form
    837,149.10/1,155,233.90 = 455,176.20/x
  3. Step 3: Cross multiply
    837,149.10x = 1,155,233.90 × 455,176.20
  4. Step 4: Simplify right side
    837,149.10x = 525,834,976,713.18
  5. Step 5: Solve for x
    x = 525,834,976,713.18/837,149.10
  6. Step 6: Final answer
    x = 628,125.83

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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.