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Finding the Fourth Proportional to 654,695.18, 903,375.19 and 368,159.89

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Solution

The fourth proportional to 654,695.18, 903,375.19 and 368,159.89 is: 508,002.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,695.18 : 903,375.19 = 368,159.89 : x
  2. Step 2: Convert to fraction form
    654,695.18/903,375.19 = 368,159.89/x
  3. Step 3: Cross multiply
    654,695.18x = 903,375.19 × 368,159.89
  4. Step 4: Simplify right side
    654,695.18x = 332,586,510,579.13
  5. Step 5: Solve for x
    x = 332,586,510,579.13/654,695.18
  6. Step 6: Final answer
    x = 508,002.08

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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.