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Finding the Fourth Proportional to 366,298.74, 505,331.24 and 221,023.50

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Solution

The fourth proportional to 366,298.74, 505,331.24 and 221,023.50 is: 304,915.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,298.74 : 505,331.24 = 221,023.50 : x
  2. Step 2: Convert to fraction form
    366,298.74/505,331.24 = 221,023.50/x
  3. Step 3: Cross multiply
    366,298.74x = 505,331.24 × 221,023.50
  4. Step 4: Simplify right side
    366,298.74x = 111,690,076,324.03
  5. Step 5: Solve for x
    x = 111,690,076,324.03/366,298.74
  6. Step 6: Final answer
    x = 304,915.26

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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.