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Finding the Fourth Proportional to 525,853.60, 788,780.40 and 170,879.20

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Solution

The fourth proportional to 525,853.60, 788,780.40 and 170,879.20 is: 256,318.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,853.60 : 788,780.40 = 170,879.20 : x
  2. Step 2: Convert to fraction form
    525,853.60/788,780.40 = 170,879.20/x
  3. Step 3: Cross multiply
    525,853.60x = 788,780.40 × 170,879.20
  4. Step 4: Simplify right side
    525,853.60x = 134,786,163,727.68
  5. Step 5: Solve for x
    x = 134,786,163,727.68/525,853.60
  6. Step 6: Final answer
    x = 256,318.80

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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.