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Finding the Fourth Proportional to 309,642.55, 463,807.72 and 233,928.61

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Solution

The fourth proportional to 309,642.55, 463,807.72 and 233,928.61 is: 350,397.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,642.55 : 463,807.72 = 233,928.61 : x
  2. Step 2: Convert to fraction form
    309,642.55/463,807.72 = 233,928.61/x
  3. Step 3: Cross multiply
    309,642.55x = 463,807.72 × 233,928.61
  4. Step 4: Simplify right side
    309,642.55x = 108,497,894,379.76
  5. Step 5: Solve for x
    x = 108,497,894,379.76/309,642.55
  6. Step 6: Final answer
    x = 350,397.24

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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.