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Finding the Fourth Proportional to 400,169.44, 551,973.54 and 256,702.24

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Solution

The fourth proportional to 400,169.44, 551,973.54 and 256,702.24 is: 354,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,169.44 : 551,973.54 = 256,702.24 : x
  2. Step 2: Convert to fraction form
    400,169.44/551,973.54 = 256,702.24/x
  3. Step 3: Cross multiply
    400,169.44x = 551,973.54 × 256,702.24
  4. Step 4: Simplify right side
    400,169.44x = 141,692,844,138.73
  5. Step 5: Solve for x
    x = 141,692,844,138.73/400,169.44
  6. Step 6: Final answer
    x = 354,082.12

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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.