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Finding the Fourth Proportional to 567,479.76, 783,124.44 and 312,825.36

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Solution

The fourth proportional to 567,479.76, 783,124.44 and 312,825.36 is: 431,700.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,479.76 : 783,124.44 = 312,825.36 : x
  2. Step 2: Convert to fraction form
    567,479.76/783,124.44 = 312,825.36/x
  3. Step 3: Cross multiply
    567,479.76x = 783,124.44 × 312,825.36
  4. Step 4: Simplify right side
    567,479.76x = 244,981,184,867.80
  5. Step 5: Solve for x
    x = 244,981,184,867.80/567,479.76
  6. Step 6: Final answer
    x = 431,700.30

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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.