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Finding the Fourth Proportional to 525,680.78, 788,509.85 and 146,591.42

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Solution

The fourth proportional to 525,680.78, 788,509.85 and 146,591.42 is: 219,883.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,680.78 : 788,509.85 = 146,591.42 : x
  2. Step 2: Convert to fraction form
    525,680.78/788,509.85 = 146,591.42/x
  3. Step 3: Cross multiply
    525,680.78x = 788,509.85 × 146,591.42
  4. Step 4: Simplify right side
    525,680.78x = 115,588,778,595.49
  5. Step 5: Solve for x
    x = 115,588,778,595.49/525,680.78
  6. Step 6: Final answer
    x = 219,883.97

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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.