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Finding the Fourth Proportional to 400,059.60, 552,156.12 and 256,998.48

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Solution

The fourth proportional to 400,059.60, 552,156.12 and 256,998.48 is: 354,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,059.60 : 552,156.12 = 256,998.48 : x
  2. Step 2: Convert to fraction form
    400,059.60/552,156.12 = 256,998.48/x
  3. Step 3: Cross multiply
    400,059.60x = 552,156.12 × 256,998.48
  4. Step 4: Simplify right side
    400,059.60x = 141,903,283,562.70
  5. Step 5: Solve for x
    x = 141,903,283,562.70/400,059.60
  6. Step 6: Final answer
    x = 354,705.36

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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.