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Finding the Fourth Proportional to 1,173,839.60, 1,756,093.80 and 1,017,801.20

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Solution

The fourth proportional to 1,173,839.60, 1,756,093.80 and 1,017,801.20 is: 1,522,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,839.60 : 1,756,093.80 = 1,017,801.20 : x
  2. Step 2: Convert to fraction form
    1,173,839.60/1,756,093.80 = 1,017,801.20/x
  3. Step 3: Cross multiply
    1,173,839.60x = 1,756,093.80 × 1,017,801.20
  4. Step 4: Simplify right side
    1,173,839.60x = 1,787,354,376,952.56
  5. Step 5: Solve for x
    x = 1,787,354,376,952.56/1,173,839.60
  6. Step 6: Final answer
    x = 1,522,656.40

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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.