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Finding the Fourth Proportional to 668,104.65, 1,002,376.89 and 444,345.39

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Solution

The fourth proportional to 668,104.65, 1,002,376.89 and 444,345.39 is: 666,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,104.65 : 1,002,376.89 = 444,345.39 : x
  2. Step 2: Convert to fraction form
    668,104.65/1,002,376.89 = 444,345.39/x
  3. Step 3: Cross multiply
    668,104.65x = 1,002,376.89 × 444,345.39
  4. Step 4: Simplify right side
    668,104.65x = 445,401,550,114.04
  5. Step 5: Solve for x
    x = 445,401,550,114.04/668,104.65
  6. Step 6: Final answer
    x = 666,664.35

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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.