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Finding the Fourth Proportional to 570,764.06, 787,652.43 and 329,045.48

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Solution

The fourth proportional to 570,764.06, 787,652.43 and 329,045.48 is: 454,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,764.06 : 787,652.43 = 329,045.48 : x
  2. Step 2: Convert to fraction form
    570,764.06/787,652.43 = 329,045.48/x
  3. Step 3: Cross multiply
    570,764.06x = 787,652.43 × 329,045.48
  4. Step 4: Simplify right side
    570,764.06x = 259,173,471,902.52
  5. Step 5: Solve for x
    x = 259,173,471,902.52/570,764.06
  6. Step 6: Final answer
    x = 454,081.63

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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.