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Finding the Fourth Proportional to 348,663.60, 481,385.88 and 267,944.40

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Solution

The fourth proportional to 348,663.60, 481,385.88 and 267,944.40 is: 369,940.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,663.60 : 481,385.88 = 267,944.40 : x
  2. Step 2: Convert to fraction form
    348,663.60/481,385.88 = 267,944.40/x
  3. Step 3: Cross multiply
    348,663.60x = 481,385.88 × 267,944.40
  4. Step 4: Simplify right side
    348,663.60x = 128,984,650,785.07
  5. Step 5: Solve for x
    x = 128,984,650,785.07/348,663.60
  6. Step 6: Final answer
    x = 369,940.11

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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.