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Finding the Fourth Proportional to 487,532.22, 672,805.35 and 344,544.54

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Solution

The fourth proportional to 487,532.22, 672,805.35 and 344,544.54 is: 475,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,532.22 : 672,805.35 = 344,544.54 : x
  2. Step 2: Convert to fraction form
    487,532.22/672,805.35 = 344,544.54/x
  3. Step 3: Cross multiply
    487,532.22x = 672,805.35 × 344,544.54
  4. Step 4: Simplify right side
    487,532.22x = 231,811,409,825.29
  5. Step 5: Solve for x
    x = 231,811,409,825.29/487,532.22
  6. Step 6: Final answer
    x = 475,479.16

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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.