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Finding the Fourth Proportional to 619,352.44, 928,805.55 and 214,434.71

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Solution

The fourth proportional to 619,352.44, 928,805.55 and 214,434.71 is: 321,574.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,352.44 : 928,805.55 = 214,434.71 : x
  2. Step 2: Convert to fraction form
    619,352.44/928,805.55 = 214,434.71/x
  3. Step 3: Cross multiply
    619,352.44x = 928,805.55 × 214,434.71
  4. Step 4: Simplify right side
    619,352.44x = 199,168,151,082.65
  5. Step 5: Solve for x
    x = 199,168,151,082.65/619,352.44
  6. Step 6: Final answer
    x = 321,574.82

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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.