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Finding the Fourth Proportional to 1,973,729.60, 2,955,345.60 and 1,259,892.80

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Solution

The fourth proportional to 1,973,729.60, 2,955,345.60 and 1,259,892.80 is: 1,886,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,729.60 : 2,955,345.60 = 1,259,892.80 : x
  2. Step 2: Convert to fraction form
    1,973,729.60/2,955,345.60 = 1,259,892.80/x
  3. Step 3: Cross multiply
    1,973,729.60x = 2,955,345.60 × 1,259,892.80
  4. Step 4: Simplify right side
    1,973,729.60x = 3,723,418,642,951.68
  5. Step 5: Solve for x
    x = 3,723,418,642,951.68/1,973,729.60
  6. Step 6: Final answer
    x = 1,886,488.73

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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.