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Finding the Fourth Proportional to 368,606.88, 508,672.44 and 215,750.16

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Solution

The fourth proportional to 368,606.88, 508,672.44 and 215,750.16 is: 297,732.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,606.88 : 508,672.44 = 215,750.16 : x
  2. Step 2: Convert to fraction form
    368,606.88/508,672.44 = 215,750.16/x
  3. Step 3: Cross multiply
    368,606.88x = 508,672.44 × 215,750.16
  4. Step 4: Simplify right side
    368,606.88x = 109,746,160,317.59
  5. Step 5: Solve for x
    x = 109,746,160,317.59/368,606.88
  6. Step 6: Final answer
    x = 297,732.26

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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.