Home / 613,860.09-847,083.38-338,205.90

Finding the Fourth Proportional to 613,860.09, 847,083.38 and 338,205.90

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Solution

The fourth proportional to 613,860.09, 847,083.38 and 338,205.90 is: 466,700.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,860.09 : 847,083.38 = 338,205.90 : x
  2. Step 2: Convert to fraction form
    613,860.09/847,083.38 = 338,205.90/x
  3. Step 3: Cross multiply
    613,860.09x = 847,083.38 × 338,205.90
  4. Step 4: Simplify right side
    613,860.09x = 286,488,596,907.94
  5. Step 5: Solve for x
    x = 286,488,596,907.94/613,860.09
  6. Step 6: Final answer
    x = 466,700.15

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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.