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Finding the Fourth Proportional to 873,843.70, 1,311,275.31 and 368,374

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Solution

The fourth proportional to 873,843.70, 1,311,275.31 and 368,374 is: 552,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,843.70 : 1,311,275.31 = 368,374 : x
  2. Step 2: Convert to fraction form
    873,843.70/1,311,275.31 = 368,374/x
  3. Step 3: Cross multiply
    873,843.70x = 1,311,275.31 × 368,374
  4. Step 4: Simplify right side
    873,843.70x = 483,039,731,045.94
  5. Step 5: Solve for x
    x = 483,039,731,045.94/873,843.70
  6. Step 6: Final answer
    x = 552,775.89

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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.