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Finding the Fourth Proportional to 644,999.40, 967,499.10 and 613,998.68

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Solution

The fourth proportional to 644,999.40, 967,499.10 and 613,998.68 is: 920,998.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,999.40 : 967,499.10 = 613,998.68 : x
  2. Step 2: Convert to fraction form
    644,999.40/967,499.10 = 613,998.68/x
  3. Step 3: Cross multiply
    644,999.40x = 967,499.10 × 613,998.68
  4. Step 4: Simplify right side
    644,999.40x = 594,043,165,463.69
  5. Step 5: Solve for x
    x = 594,043,165,463.69/644,999.40
  6. Step 6: Final answer
    x = 920,998.01

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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.