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Finding the Fourth Proportional to 723,677.91, 998,021.84 and 451,770.93

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Solution

The fourth proportional to 723,677.91, 998,021.84 and 451,770.93 is: 623,035.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,677.91 : 998,021.84 = 451,770.93 : x
  2. Step 2: Convert to fraction form
    723,677.91/998,021.84 = 451,770.93/x
  3. Step 3: Cross multiply
    723,677.91x = 998,021.84 × 451,770.93
  4. Step 4: Simplify right side
    723,677.91x = 450,877,252,558.26
  5. Step 5: Solve for x
    x = 450,877,252,558.26/723,677.91
  6. Step 6: Final answer
    x = 623,035.81

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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.