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Finding the Fourth Proportional to 652,247.90, 978,371.85 and 605,008.70

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Solution

The fourth proportional to 652,247.90, 978,371.85 and 605,008.70 is: 907,513.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,247.90 : 978,371.85 = 605,008.70 : x
  2. Step 2: Convert to fraction form
    652,247.90/978,371.85 = 605,008.70/x
  3. Step 3: Cross multiply
    652,247.90x = 978,371.85 × 605,008.70
  4. Step 4: Simplify right side
    652,247.90x = 591,923,481,085.10
  5. Step 5: Solve for x
    x = 591,923,481,085.10/652,247.90
  6. Step 6: Final answer
    x = 907,513.05

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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.