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Finding the Fourth Proportional to 439,015, 605,840.88 and 237,811

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Solution

The fourth proportional to 439,015, 605,840.88 and 237,811 is: 328,179.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,015 : 605,840.88 = 237,811 : x
  2. Step 2: Convert to fraction form
    439,015/605,840.88 = 237,811/x
  3. Step 3: Cross multiply
    439,015x = 605,840.88 × 237,811
  4. Step 4: Simplify right side
    439,015x = 144,075,625,513.68
  5. Step 5: Solve for x
    x = 144,075,625,513.68/439,015
  6. Step 6: Final answer
    x = 328,179.28

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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.