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Finding the Fourth Proportional to 525,612, 788,432.58 and 151,635

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Solution

The fourth proportional to 525,612, 788,432.58 and 151,635 is: 227,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,612 : 788,432.58 = 151,635 : x
  2. Step 2: Convert to fraction form
    525,612/788,432.58 = 151,635/x
  3. Step 3: Cross multiply
    525,612x = 788,432.58 × 151,635
  4. Step 4: Simplify right side
    525,612x = 119,553,974,268.30
  5. Step 5: Solve for x
    x = 119,553,974,268.30/525,612
  6. Step 6: Final answer
    x = 227,456.71

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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.