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Finding the Fourth Proportional to 555,545.74, 766,649.54 and 313,906.54

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Solution

The fourth proportional to 555,545.74, 766,649.54 and 313,906.54 is: 433,189.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,545.74 : 766,649.54 = 313,906.54 : x
  2. Step 2: Convert to fraction form
    555,545.74/766,649.54 = 313,906.54/x
  3. Step 3: Cross multiply
    555,545.74x = 766,649.54 × 313,906.54
  4. Step 4: Simplify right side
    555,545.74x = 240,656,304,493.99
  5. Step 5: Solve for x
    x = 240,656,304,493.99/555,545.74
  6. Step 6: Final answer
    x = 433,189.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.