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Finding the Fourth Proportional to 1,663,984.84, 2,494,446.36 and 904,716.76

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Solution

The fourth proportional to 1,663,984.84, 2,494,446.36 and 904,716.76 is: 1,356,242.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,984.84 : 2,494,446.36 = 904,716.76 : x
  2. Step 2: Convert to fraction form
    1,663,984.84/2,494,446.36 = 904,716.76/x
  3. Step 3: Cross multiply
    1,663,984.84x = 2,494,446.36 × 904,716.76
  4. Step 4: Simplify right side
    1,663,984.84x = 2,256,767,428,812.99
  5. Step 5: Solve for x
    x = 2,256,767,428,812.99/1,663,984.84
  6. Step 6: Final answer
    x = 1,356,242.78

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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.