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Finding the Fourth Proportional to 525,740.60, 788,610.90 and 170,766.20

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Solution

The fourth proportional to 525,740.60, 788,610.90 and 170,766.20 is: 256,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,740.60 : 788,610.90 = 170,766.20 : x
  2. Step 2: Convert to fraction form
    525,740.60/788,610.90 = 170,766.20/x
  3. Step 3: Cross multiply
    525,740.60x = 788,610.90 × 170,766.20
  4. Step 4: Simplify right side
    525,740.60x = 134,668,086,671.58
  5. Step 5: Solve for x
    x = 134,668,086,671.58/525,740.60
  6. Step 6: Final answer
    x = 256,149.30

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Similar ratio
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1.5x scale

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.