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Finding the Fourth Proportional to 804,156.13, 1,109,754.78 and 436,648.90

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Solution

The fourth proportional to 804,156.13, 1,109,754.78 and 436,648.90 is: 602,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,156.13 : 1,109,754.78 = 436,648.90 : x
  2. Step 2: Convert to fraction form
    804,156.13/1,109,754.78 = 436,648.90/x
  3. Step 3: Cross multiply
    804,156.13x = 1,109,754.78 × 436,648.90
  4. Step 4: Simplify right side
    804,156.13x = 484,573,203,956.74
  5. Step 5: Solve for x
    x = 484,573,203,956.74/804,156.13
  6. Step 6: Final answer
    x = 602,585.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.