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Finding the Fourth Proportional to 517,578.48, 714,093.44 and 291,180.24

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Solution

The fourth proportional to 517,578.48, 714,093.44 and 291,180.24 is: 401,735.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,578.48 : 714,093.44 = 291,180.24 : x
  2. Step 2: Convert to fraction form
    517,578.48/714,093.44 = 291,180.24/x
  3. Step 3: Cross multiply
    517,578.48x = 714,093.44 × 291,180.24
  4. Step 4: Simplify right side
    517,578.48x = 207,929,897,785.72
  5. Step 5: Solve for x
    x = 207,929,897,785.72/517,578.48
  6. Step 6: Final answer
    x = 401,735.98

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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.