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Finding the Fourth Proportional to 613,492.38, 846,449.19 and 395,608.86

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Solution

The fourth proportional to 613,492.38, 846,449.19 and 395,608.86 is: 545,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,492.38 : 846,449.19 = 395,608.86 : x
  2. Step 2: Convert to fraction form
    613,492.38/846,449.19 = 395,608.86/x
  3. Step 3: Cross multiply
    613,492.38x = 846,449.19 × 395,608.86
  4. Step 4: Simplify right side
    613,492.38x = 334,862,799,103.82
  5. Step 5: Solve for x
    x = 334,862,799,103.82/613,492.38
  6. Step 6: Final answer
    x = 545,830.41

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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.