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Finding the Fourth Proportional to 504,851.41, 696,632.40 and 308,716.46

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Solution

The fourth proportional to 504,851.41, 696,632.40 and 308,716.46 is: 425,990.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,851.41 : 696,632.40 = 308,716.46 : x
  2. Step 2: Convert to fraction form
    504,851.41/696,632.40 = 308,716.46/x
  3. Step 3: Cross multiply
    504,851.41x = 696,632.40 × 308,716.46
  4. Step 4: Simplify right side
    504,851.41x = 215,061,891,497.07
  5. Step 5: Solve for x
    x = 215,061,891,497.07/504,851.41
  6. Step 6: Final answer
    x = 425,990.48

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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.