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Finding the Fourth Proportional to 635,952.20, 877,422.66 and 381,210.44

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Solution

The fourth proportional to 635,952.20, 877,422.66 and 381,210.44 is: 525,955.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,952.20 : 877,422.66 = 381,210.44 : x
  2. Step 2: Convert to fraction form
    635,952.20/877,422.66 = 381,210.44/x
  3. Step 3: Cross multiply
    635,952.20x = 877,422.66 × 381,210.44
  4. Step 4: Simplify right side
    635,952.20x = 334,482,678,284.57
  5. Step 5: Solve for x
    x = 334,482,678,284.57/635,952.20
  6. Step 6: Final answer
    x = 525,955.69

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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.