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Finding the Fourth Proportional to 621,808.80, 932,713.20 and 222,425.34

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Solution

The fourth proportional to 621,808.80, 932,713.20 and 222,425.34 is: 333,638.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,808.80 : 932,713.20 = 222,425.34 : x
  2. Step 2: Convert to fraction form
    621,808.80/932,713.20 = 222,425.34/x
  3. Step 3: Cross multiply
    621,808.80x = 932,713.20 × 222,425.34
  4. Step 4: Simplify right side
    621,808.80x = 207,459,050,632.49
  5. Step 5: Solve for x
    x = 207,459,050,632.49/621,808.80
  6. Step 6: Final answer
    x = 333,638.01

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Double scale
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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.