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Finding the Fourth Proportional to 402,279.60, 603,808.20 and 244,815.60

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Solution

The fourth proportional to 402,279.60, 603,808.20 and 244,815.60 is: 367,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,279.60 : 603,808.20 = 244,815.60 : x
  2. Step 2: Convert to fraction form
    402,279.60/603,808.20 = 244,815.60/x
  3. Step 3: Cross multiply
    402,279.60x = 603,808.20 × 244,815.60
  4. Step 4: Simplify right side
    402,279.60x = 147,821,666,767.92
  5. Step 5: Solve for x
    x = 147,821,666,767.92/402,279.60
  6. Step 6: Final answer
    x = 367,460.01

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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.