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Finding the Fourth Proportional to 620,606.08, 930,909.17 and 199,881.96

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Solution

The fourth proportional to 620,606.08, 930,909.17 and 199,881.96 is: 299,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,606.08 : 930,909.17 = 199,881.96 : x
  2. Step 2: Convert to fraction form
    620,606.08/930,909.17 = 199,881.96/x
  3. Step 3: Cross multiply
    620,606.08x = 930,909.17 × 199,881.96
  4. Step 4: Simplify right side
    620,606.08x = 186,071,949,481.57
  5. Step 5: Solve for x
    x = 186,071,949,481.57/620,606.08
  6. Step 6: Final answer
    x = 299,822.96

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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.