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Finding the Fourth Proportional to 615,095.45, 848,832.25 and 343,163.40

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Solution

The fourth proportional to 615,095.45, 848,832.25 and 343,163.40 is: 473,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,095.45 : 848,832.25 = 343,163.40 : x
  2. Step 2: Convert to fraction form
    615,095.45/848,832.25 = 343,163.40/x
  3. Step 3: Cross multiply
    615,095.45x = 848,832.25 × 343,163.40
  4. Step 4: Simplify right side
    615,095.45x = 291,288,160,939.65
  5. Step 5: Solve for x
    x = 291,288,160,939.65/615,095.45
  6. Step 6: Final answer
    x = 473,565.79

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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.