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Finding the Fourth Proportional to 802,115.16, 1,203,279.40 and 375,592.75

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Solution

The fourth proportional to 802,115.16, 1,203,279.40 and 375,592.75 is: 563,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,115.16 : 1,203,279.40 = 375,592.75 : x
  2. Step 2: Convert to fraction form
    802,115.16/1,203,279.40 = 375,592.75/x
  3. Step 3: Cross multiply
    802,115.16x = 1,203,279.40 × 375,592.75
  4. Step 4: Simplify right side
    802,115.16x = 451,943,016,325.64
  5. Step 5: Solve for x
    x = 451,943,016,325.64/802,115.16
  6. Step 6: Final answer
    x = 563,439.07

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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.