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Finding the Fourth Proportional to 614,775.02, 848,387.87 and 342,843.21

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Solution

The fourth proportional to 614,775.02, 848,387.87 and 342,843.21 is: 473,122.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,775.02 : 848,387.87 = 342,843.21 : x
  2. Step 2: Convert to fraction form
    614,775.02/848,387.87 = 342,843.21/x
  3. Step 3: Cross multiply
    614,775.02x = 848,387.87 × 342,843.21
  4. Step 4: Simplify right side
    614,775.02x = 290,864,018,961.65
  5. Step 5: Solve for x
    x = 290,864,018,961.65/614,775.02
  6. Step 6: Final answer
    x = 473,122.71

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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.