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Finding the Fourth Proportional to 1,054,691.04, 1,582,019.84 and 255,979.20

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Solution

The fourth proportional to 1,054,691.04, 1,582,019.84 and 255,979.20 is: 383,964.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,691.04 : 1,582,019.84 = 255,979.20 : x
  2. Step 2: Convert to fraction form
    1,054,691.04/1,582,019.84 = 255,979.20/x
  3. Step 3: Cross multiply
    1,054,691.04x = 1,582,019.84 × 255,979.20
  4. Step 4: Simplify right side
    1,054,691.04x = 404,964,173,027.33
  5. Step 5: Solve for x
    x = 404,964,173,027.33/1,054,691.04
  6. Step 6: Final answer
    x = 383,964.74

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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.