Home / 878,238.15-1,211,597.43-587,943.21

Finding the Fourth Proportional to 878,238.15, 1,211,597.43 and 587,943.21

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Solution

The fourth proportional to 878,238.15, 1,211,597.43 and 587,943.21 is: 811,113.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,238.15 : 1,211,597.43 = 587,943.21 : x
  2. Step 2: Convert to fraction form
    878,238.15/1,211,597.43 = 587,943.21/x
  3. Step 3: Cross multiply
    878,238.15x = 1,211,597.43 × 587,943.21
  4. Step 4: Simplify right side
    878,238.15x = 712,350,482,221.95
  5. Step 5: Solve for x
    x = 712,350,482,221.95/878,238.15
  6. Step 6: Final answer
    x = 811,113.12

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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.