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Finding the Fourth Proportional to 613,806.18, 847,075.41 and 338,175.24

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Solution

The fourth proportional to 613,806.18, 847,075.41 and 338,175.24 is: 466,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,806.18 : 847,075.41 = 338,175.24 : x
  2. Step 2: Convert to fraction form
    613,806.18/847,075.41 = 338,175.24/x
  3. Step 3: Cross multiply
    613,806.18x = 847,075.41 × 338,175.24
  4. Step 4: Simplify right side
    613,806.18x = 286,459,930,074.85
  5. Step 5: Solve for x
    x = 286,459,930,074.85/613,806.18
  6. Step 6: Final answer
    x = 466,694.44

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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.