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Finding the Fourth Proportional to 603,976,784.83, 833,474,899.20 and 349,668,865.78

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Solution

The fourth proportional to 603,976,784.83, 833,474,899.20 and 349,668,865.78 is: 482,535,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,976,784.83 : 833,474,899.20 = 349,668,865.78 : x
  2. Step 2: Convert to fraction form
    603,976,784.83/833,474,899.20 = 349,668,865.78/x
  3. Step 3: Cross multiply
    603,976,784.83x = 833,474,899.20 × 349,668,865.78
  4. Step 4: Simplify right side
    603,976,784.83x = 291,440,222,659,363,840
  5. Step 5: Solve for x
    x = 291,440,222,659,363,840/603,976,784.83
  6. Step 6: Final answer
    x = 482,535,471.53

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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.