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Finding the Fourth Proportional to 617,991.66, 852,758.01 and 346,021.74

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Solution

The fourth proportional to 617,991.66, 852,758.01 and 346,021.74 is: 477,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,991.66 : 852,758.01 = 346,021.74 : x
  2. Step 2: Convert to fraction form
    617,991.66/852,758.01 = 346,021.74/x
  3. Step 3: Cross multiply
    617,991.66x = 852,758.01 × 346,021.74
  4. Step 4: Simplify right side
    617,991.66x = 295,072,810,419.14
  5. Step 5: Solve for x
    x = 295,072,810,419.14/617,991.66
  6. Step 6: Final answer
    x = 477,470.54

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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.