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Finding the Fourth Proportional to 423,046.72, 635,133.20 and 245,681.04

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Solution

The fourth proportional to 423,046.72, 635,133.20 and 245,681.04 is: 368,848.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,046.72 : 635,133.20 = 245,681.04 : x
  2. Step 2: Convert to fraction form
    423,046.72/635,133.20 = 245,681.04/x
  3. Step 3: Cross multiply
    423,046.72x = 635,133.20 × 245,681.04
  4. Step 4: Simplify right side
    423,046.72x = 156,040,185,114.53
  5. Step 5: Solve for x
    x = 156,040,185,114.53/423,046.72
  6. Step 6: Final answer
    x = 368,848.59

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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.