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Finding the Fourth Proportional to 525,679.78, 788,508.35 and 146,590.42

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Solution

The fourth proportional to 525,679.78, 788,508.35 and 146,590.42 is: 219,882.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,679.78 : 788,508.35 = 146,590.42 : x
  2. Step 2: Convert to fraction form
    525,679.78/788,508.35 = 146,590.42/x
  3. Step 3: Cross multiply
    525,679.78x = 788,508.35 × 146,590.42
  4. Step 4: Simplify right side
    525,679.78x = 115,587,770,200.01
  5. Step 5: Solve for x
    x = 115,587,770,200.01/525,679.78
  6. Step 6: Final answer
    x = 219,882.47

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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.