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Finding the Fourth Proportional to 378,032.40, 566,173.80 and 259,059.60

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Solution

The fourth proportional to 378,032.40, 566,173.80 and 259,059.60 is: 387,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,032.40 : 566,173.80 = 259,059.60 : x
  2. Step 2: Convert to fraction form
    378,032.40/566,173.80 = 259,059.60/x
  3. Step 3: Cross multiply
    378,032.40x = 566,173.80 × 259,059.60
  4. Step 4: Simplify right side
    378,032.40x = 146,672,758,158.48
  5. Step 5: Solve for x
    x = 146,672,758,158.48/378,032.40
  6. Step 6: Final answer
    x = 387,989.91

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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.