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Finding the Fourth Proportional to 368,447.80, 552,671.70 and 256,473.40

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Solution

The fourth proportional to 368,447.80, 552,671.70 and 256,473.40 is: 384,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,447.80 : 552,671.70 = 256,473.40 : x
  2. Step 2: Convert to fraction form
    368,447.80/552,671.70 = 256,473.40/x
  3. Step 3: Cross multiply
    368,447.80x = 552,671.70 × 256,473.40
  4. Step 4: Simplify right side
    368,447.80x = 141,745,589,982.78
  5. Step 5: Solve for x
    x = 141,745,589,982.78/368,447.80
  6. Step 6: Final answer
    x = 384,710.10

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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.