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Finding the Fourth Proportional to 355,679.90, 533,908.65 and 222,710.30

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Solution

The fourth proportional to 355,679.90, 533,908.65 and 222,710.30 is: 334,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,679.90 : 533,908.65 = 222,710.30 : x
  2. Step 2: Convert to fraction form
    355,679.90/533,908.65 = 222,710.30/x
  3. Step 3: Cross multiply
    355,679.90x = 533,908.65 × 222,710.30
  4. Step 4: Simplify right side
    355,679.90x = 118,906,955,614.10
  5. Step 5: Solve for x
    x = 118,906,955,614.10/355,679.90
  6. Step 6: Final answer
    x = 334,308.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.