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Finding the Fourth Proportional to 1,582,742.70, 2,375,134.65 and 873,279.90

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Solution

The fourth proportional to 1,582,742.70, 2,375,134.65 and 873,279.90 is: 1,310,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582,742.70 : 2,375,134.65 = 873,279.90 : x
  2. Step 2: Convert to fraction form
    1,582,742.70/2,375,134.65 = 873,279.90/x
  3. Step 3: Cross multiply
    1,582,742.70x = 2,375,134.65 × 873,279.90
  4. Step 4: Simplify right side
    1,582,742.70x = 2,074,157,349,638.54
  5. Step 5: Solve for x
    x = 2,074,157,349,638.54/1,582,742.70
  6. Step 6: Final answer
    x = 1,310,482.97

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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.