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Finding the Fourth Proportional to 291,133.18, 401,737.21 and 170,253.44

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Solution

The fourth proportional to 291,133.18, 401,737.21 and 170,253.44 is: 234,934.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,133.18 : 401,737.21 = 170,253.44 : x
  2. Step 2: Convert to fraction form
    291,133.18/401,737.21 = 170,253.44/x
  3. Step 3: Cross multiply
    291,133.18x = 401,737.21 × 170,253.44
  4. Step 4: Simplify right side
    291,133.18x = 68,397,141,978.50
  5. Step 5: Solve for x
    x = 68,397,141,978.50/291,133.18
  6. Step 6: Final answer
    x = 234,934.20

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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.