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Finding the Fourth Proportional to 584,645.88, 806,263.77 and 388,064.70

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Solution

The fourth proportional to 584,645.88, 806,263.77 and 388,064.70 is: 535,165.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,645.88 : 806,263.77 = 388,064.70 : x
  2. Step 2: Convert to fraction form
    584,645.88/806,263.77 = 388,064.70/x
  3. Step 3: Cross multiply
    584,645.88x = 806,263.77 × 388,064.70
  4. Step 4: Simplify right side
    584,645.88x = 312,882,508,025.92
  5. Step 5: Solve for x
    x = 312,882,508,025.92/584,645.88
  6. Step 6: Final answer
    x = 535,165.85

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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.