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Finding the Fourth Proportional to 652,633.61, 900,728.10 and 362,311.79

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Solution

The fourth proportional to 652,633.61, 900,728.10 and 362,311.79 is: 500,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,633.61 : 900,728.10 = 362,311.79 : x
  2. Step 2: Convert to fraction form
    652,633.61/900,728.10 = 362,311.79/x
  3. Step 3: Cross multiply
    652,633.61x = 900,728.10 × 362,311.79
  4. Step 4: Simplify right side
    652,633.61x = 326,344,405,710.66
  5. Step 5: Solve for x
    x = 326,344,405,710.66/652,633.61
  6. Step 6: Final answer
    x = 500,042.30

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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.