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Finding the Fourth Proportional to 1,476,687.60, 2,073,661.20 and 1,476,687.60

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Solution

The fourth proportional to 1,476,687.60, 2,073,661.20 and 1,476,687.60 is: 2,073,661.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476,687.60 : 2,073,661.20 = 1,476,687.60 : x
  2. Step 2: Convert to fraction form
    1,476,687.60/2,073,661.20 = 1,476,687.60/x
  3. Step 3: Cross multiply
    1,476,687.60x = 2,073,661.20 × 1,476,687.60
  4. Step 4: Simplify right side
    1,476,687.60x = 3,062,149,780,641.12
  5. Step 5: Solve for x
    x = 3,062,149,780,641.12/1,476,687.60
  6. Step 6: Final answer
    x = 2,073,661.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.