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Finding the Fourth Proportional to 604,754,964.70, 907,300,408.65 and 259,873,812.70

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Solution

The fourth proportional to 604,754,964.70, 907,300,408.65 and 259,873,812.70 is: 389,882,895.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,754,964.70 : 907,300,408.65 = 259,873,812.70 : x
  2. Step 2: Convert to fraction form
    604,754,964.70/907,300,408.65 = 259,873,812.70/x
  3. Step 3: Cross multiply
    604,754,964.70x = 907,300,408.65 × 259,873,812.70
  4. Step 4: Simplify right side
    604,754,964.70x = 235,783,616,460,143,552
  5. Step 5: Solve for x
    x = 235,783,616,460,143,552/604,754,964.70
  6. Step 6: Final answer
    x = 389,882,895.09

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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.