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Finding the Fourth Proportional to 617,324.51, 925,309.40 and 317,821.07

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Solution

The fourth proportional to 617,324.51, 925,309.40 and 317,821.07 is: 476,382.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,324.51 : 925,309.40 = 317,821.07 : x
  2. Step 2: Convert to fraction form
    617,324.51/925,309.40 = 317,821.07/x
  3. Step 3: Cross multiply
    617,324.51x = 925,309.40 × 317,821.07
  4. Step 4: Simplify right side
    617,324.51x = 294,082,817,373.41
  5. Step 5: Solve for x
    x = 294,082,817,373.41/617,324.51
  6. Step 6: Final answer
    x = 476,382.87

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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.