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Finding the Fourth Proportional to 419,301.67, 578,559.43 and 247,273.60

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Solution

The fourth proportional to 419,301.67, 578,559.43 and 247,273.60 is: 341,192.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,301.67 : 578,559.43 = 247,273.60 : x
  2. Step 2: Convert to fraction form
    419,301.67/578,559.43 = 247,273.60/x
  3. Step 3: Cross multiply
    419,301.67x = 578,559.43 × 247,273.60
  4. Step 4: Simplify right side
    419,301.67x = 143,062,473,070.05
  5. Step 5: Solve for x
    x = 143,062,473,070.05/419,301.67
  6. Step 6: Final answer
    x = 341,192.23

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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.