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Finding the Fourth Proportional to 383,426.95, 575,140.83 and 382,873.18

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Solution

The fourth proportional to 383,426.95, 575,140.83 and 382,873.18 is: 574,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,426.95 : 575,140.83 = 382,873.18 : x
  2. Step 2: Convert to fraction form
    383,426.95/575,140.83 = 382,873.18/x
  3. Step 3: Cross multiply
    383,426.95x = 575,140.83 × 382,873.18
  4. Step 4: Simplify right side
    383,426.95x = 220,205,998,529.94
  5. Step 5: Solve for x
    x = 220,205,998,529.94/383,426.95
  6. Step 6: Final answer
    x = 574,310.17

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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.