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Finding the Fourth Proportional to 1,486,566, 2,051,427.60 and 866,332.80

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Solution

The fourth proportional to 1,486,566, 2,051,427.60 and 866,332.80 is: 1,195,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,566 : 2,051,427.60 = 866,332.80 : x
  2. Step 2: Convert to fraction form
    1,486,566/2,051,427.60 = 866,332.80/x
  3. Step 3: Cross multiply
    1,486,566x = 2,051,427.60 × 866,332.80
  4. Step 4: Simplify right side
    1,486,566x = 1,777,219,016,705.28
  5. Step 5: Solve for x
    x = 1,777,219,016,705.28/1,486,566
  6. Step 6: Final answer
    x = 1,195,519.75

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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.