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Finding the Fourth Proportional to 458,073.04, 687,305.40 and 236,612.56

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Solution

The fourth proportional to 458,073.04, 687,305.40 and 236,612.56 is: 355,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,073.04 : 687,305.40 = 236,612.56 : x
  2. Step 2: Convert to fraction form
    458,073.04/687,305.40 = 236,612.56/x
  3. Step 3: Cross multiply
    458,073.04x = 687,305.40 × 236,612.56
  4. Step 4: Simplify right side
    458,073.04x = 162,625,090,195.82
  5. Step 5: Solve for x
    x = 162,625,090,195.82/458,073.04
  6. Step 6: Final answer
    x = 355,020.00

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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.