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Finding the Fourth Proportional to 559,873,143.70, 839,809,715.55 and 273,218,679.70

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Solution

The fourth proportional to 559,873,143.70, 839,809,715.55 and 273,218,679.70 is: 409,828,019.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,873,143.70 : 839,809,715.55 = 273,218,679.70 : x
  2. Step 2: Convert to fraction form
    559,873,143.70/839,809,715.55 = 273,218,679.70/x
  3. Step 3: Cross multiply
    559,873,143.70x = 839,809,715.55 × 273,218,679.70
  4. Step 4: Simplify right side
    559,873,143.70x = 229,451,701,681,803,552
  5. Step 5: Solve for x
    x = 229,451,701,681,803,552/559,873,143.70
  6. Step 6: Final answer
    x = 409,828,019.55

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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.