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Finding the Fourth Proportional to 289,420.01, 399,272.38 and 174,634.62

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Solution

The fourth proportional to 289,420.01, 399,272.38 and 174,634.62 is: 240,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,420.01 : 399,272.38 = 174,634.62 : x
  2. Step 2: Convert to fraction form
    289,420.01/399,272.38 = 174,634.62/x
  3. Step 3: Cross multiply
    289,420.01x = 399,272.38 × 174,634.62
  4. Step 4: Simplify right side
    289,420.01x = 69,726,782,073.36
  5. Step 5: Solve for x
    x = 69,726,782,073.36/289,420.01
  6. Step 6: Final answer
    x = 240,919.01

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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.