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Finding the Fourth Proportional to 508,727.80, 763,091.70 and 153,796.60

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Solution

The fourth proportional to 508,727.80, 763,091.70 and 153,796.60 is: 230,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,727.80 : 763,091.70 = 153,796.60 : x
  2. Step 2: Convert to fraction form
    508,727.80/763,091.70 = 153,796.60/x
  3. Step 3: Cross multiply
    508,727.80x = 763,091.70 × 153,796.60
  4. Step 4: Simplify right side
    508,727.80x = 117,360,908,948.22
  5. Step 5: Solve for x
    x = 117,360,908,948.22/508,727.80
  6. Step 6: Final answer
    x = 230,694.90

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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.