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Finding the Fourth Proportional to 444,585.15, 665,445.78 and 292,907.43

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Solution

The fourth proportional to 444,585.15, 665,445.78 and 292,907.43 is: 438,417.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,585.15 : 665,445.78 = 292,907.43 : x
  2. Step 2: Convert to fraction form
    444,585.15/665,445.78 = 292,907.43/x
  3. Step 3: Cross multiply
    444,585.15x = 665,445.78 × 292,907.43
  4. Step 4: Simplify right side
    444,585.15x = 194,914,013,224.15
  5. Step 5: Solve for x
    x = 194,914,013,224.15/444,585.15
  6. Step 6: Final answer
    x = 438,417.73

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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.