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Finding the Fourth Proportional to 878,266.88, 1,211,540.76 and 534,208

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Solution

The fourth proportional to 878,266.88, 1,211,540.76 and 534,208 is: 736,922.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,266.88 : 1,211,540.76 = 534,208 : x
  2. Step 2: Convert to fraction form
    878,266.88/1,211,540.76 = 534,208/x
  3. Step 3: Cross multiply
    878,266.88x = 1,211,540.76 × 534,208
  4. Step 4: Simplify right side
    878,266.88x = 647,214,766,318.08
  5. Step 5: Solve for x
    x = 647,214,766,318.08/878,266.88
  6. Step 6: Final answer
    x = 736,922.66

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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.