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Finding the Fourth Proportional to 873,920.88, 1,310,952.72 and 242,834.88

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Solution

The fourth proportional to 873,920.88, 1,310,952.72 and 242,834.88 is: 364,272.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,920.88 : 1,310,952.72 = 242,834.88 : x
  2. Step 2: Convert to fraction form
    873,920.88/1,310,952.72 = 242,834.88/x
  3. Step 3: Cross multiply
    873,920.88x = 1,310,952.72 × 242,834.88
  4. Step 4: Simplify right side
    873,920.88x = 318,345,046,446.87
  5. Step 5: Solve for x
    x = 318,345,046,446.87/873,920.88
  6. Step 6: Final answer
    x = 364,272.16

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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.