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Finding the Fourth Proportional to 723,677.78, 998,021.67 and 451,770.81

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Solution

The fourth proportional to 723,677.78, 998,021.67 and 451,770.81 is: 623,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,677.78 : 998,021.67 = 451,770.81 : x
  2. Step 2: Convert to fraction form
    723,677.78/998,021.67 = 451,770.81/x
  3. Step 3: Cross multiply
    723,677.78x = 998,021.67 × 451,770.81
  4. Step 4: Simplify right side
    723,677.78x = 450,877,058,253.45
  5. Step 5: Solve for x
    x = 450,877,058,253.45/723,677.78
  6. Step 6: Final answer
    x = 623,035.65

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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.