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Finding the Fourth Proportional to 437,772.40, 656,172.60 and 171,444.40

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Solution

The fourth proportional to 437,772.40, 656,172.60 and 171,444.40 is: 256,976.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,772.40 : 656,172.60 = 171,444.40 : x
  2. Step 2: Convert to fraction form
    437,772.40/656,172.60 = 171,444.40/x
  3. Step 3: Cross multiply
    437,772.40x = 656,172.60 × 171,444.40
  4. Step 4: Simplify right side
    437,772.40x = 112,497,117,703.44
  5. Step 5: Solve for x
    x = 112,497,117,703.44/437,772.40
  6. Step 6: Final answer
    x = 256,976.27

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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.