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Finding the Fourth Proportional to 445,908.15, 615,864.33 and 293,627.16

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Solution

The fourth proportional to 445,908.15, 615,864.33 and 293,627.16 is: 405,542.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,908.15 : 615,864.33 = 293,627.16 : x
  2. Step 2: Convert to fraction form
    445,908.15/615,864.33 = 293,627.16/x
  3. Step 3: Cross multiply
    445,908.15x = 615,864.33 × 293,627.16
  4. Step 4: Simplify right side
    445,908.15x = 180,834,494,163.20
  5. Step 5: Solve for x
    x = 180,834,494,163.20/445,908.15
  6. Step 6: Final answer
    x = 405,542.03

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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.