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Finding the Fourth Proportional to 607,309.22, 910,354.16 and 207,676.56

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Solution

The fourth proportional to 607,309.22, 910,354.16 and 207,676.56 is: 311,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,309.22 : 910,354.16 = 207,676.56 : x
  2. Step 2: Convert to fraction form
    607,309.22/910,354.16 = 207,676.56/x
  3. Step 3: Cross multiply
    607,309.22x = 910,354.16 × 207,676.56
  4. Step 4: Simplify right side
    607,309.22x = 189,059,220,330.49
  5. Step 5: Solve for x
    x = 189,059,220,330.49/607,309.22
  6. Step 6: Final answer
    x = 311,306.36

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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.