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Finding the Fourth Proportional to 613,684.42, 846,860.88 and 341,763.78

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Solution

The fourth proportional to 613,684.42, 846,860.88 and 341,763.78 is: 471,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,684.42 : 846,860.88 = 341,763.78 : x
  2. Step 2: Convert to fraction form
    613,684.42/846,860.88 = 341,763.78/x
  3. Step 3: Cross multiply
    613,684.42x = 846,860.88 × 341,763.78
  4. Step 4: Simplify right side
    613,684.42x = 289,426,371,248.62
  5. Step 5: Solve for x
    x = 289,426,371,248.62/613,684.42
  6. Step 6: Final answer
    x = 471,620.86

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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.