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Finding the Fourth Proportional to 1,127,677.11, 1,692,958.98 and 968,769.69

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Solution

The fourth proportional to 1,127,677.11, 1,692,958.98 and 968,769.69 is: 1,454,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,677.11 : 1,692,958.98 = 968,769.69 : x
  2. Step 2: Convert to fraction form
    1,127,677.11/1,692,958.98 = 968,769.69/x
  3. Step 3: Cross multiply
    1,127,677.11x = 1,692,958.98 × 968,769.69
  4. Step 4: Simplify right side
    1,127,677.11x = 1,640,087,349,870.20
  5. Step 5: Solve for x
    x = 1,640,087,349,870.20/1,127,677.11
  6. Step 6: Final answer
    x = 1,454,394.47

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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.