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Finding the Fourth Proportional to 2,762,983, 4,144,707.78 and 768,439

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Solution

The fourth proportional to 2,762,983, 4,144,707.78 and 768,439 is: 1,152,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762,983 : 4,144,707.78 = 768,439 : x
  2. Step 2: Convert to fraction form
    2,762,983/4,144,707.78 = 768,439/x
  3. Step 3: Cross multiply
    2,762,983x = 4,144,707.78 × 768,439
  4. Step 4: Simplify right side
    2,762,983x = 3,184,955,101,755.42
  5. Step 5: Solve for x
    x = 3,184,955,101,755.42/2,762,983
  6. Step 6: Final answer
    x = 1,152,723.38

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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.