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Finding the Fourth Proportional to 941,774.52, 1,403,790 and 866,191.80

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Solution

The fourth proportional to 941,774.52, 1,403,790 and 866,191.80 is: 1,291,127.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,774.52 : 1,403,790 = 866,191.80 : x
  2. Step 2: Convert to fraction form
    941,774.52/1,403,790 = 866,191.80/x
  3. Step 3: Cross multiply
    941,774.52x = 1,403,790 × 866,191.80
  4. Step 4: Simplify right side
    941,774.52x = 1,215,951,386,922
  5. Step 5: Solve for x
    x = 1,215,951,386,922/941,774.52
  6. Step 6: Final answer
    x = 1,291,127.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.