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Finding the Fourth Proportional to 438,910.77, 605,696.91 and 237,706.77

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Solution

The fourth proportional to 438,910.77, 605,696.91 and 237,706.77 is: 328,035.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,910.77 : 605,696.91 = 237,706.77 : x
  2. Step 2: Convert to fraction form
    438,910.77/605,696.91 = 237,706.77/x
  3. Step 3: Cross multiply
    438,910.77x = 605,696.91 × 237,706.77
  4. Step 4: Simplify right side
    438,910.77x = 143,978,256,075.08
  5. Step 5: Solve for x
    x = 143,978,256,075.08/438,910.77
  6. Step 6: Final answer
    x = 328,035.37

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1.5x scale

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.