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Finding the Fourth Proportional to 620,077.60, 930,116.40 and 170,867.80

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Solution

The fourth proportional to 620,077.60, 930,116.40 and 170,867.80 is: 256,301.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,077.60 : 930,116.40 = 170,867.80 : x
  2. Step 2: Convert to fraction form
    620,077.60/930,116.40 = 170,867.80/x
  3. Step 3: Cross multiply
    620,077.60x = 930,116.40 × 170,867.80
  4. Step 4: Simplify right side
    620,077.60x = 158,926,943,011.92
  5. Step 5: Solve for x
    x = 158,926,943,011.92/620,077.60
  6. Step 6: Final answer
    x = 256,301.70

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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.