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Finding the Fourth Proportional to 440,458.77, 607,816.84 and 239,250.45

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Solution

The fourth proportional to 440,458.77, 607,816.84 and 239,250.45 is: 330,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,458.77 : 607,816.84 = 239,250.45 : x
  2. Step 2: Convert to fraction form
    440,458.77/607,816.84 = 239,250.45/x
  3. Step 3: Cross multiply
    440,458.77x = 607,816.84 × 239,250.45
  4. Step 4: Simplify right side
    440,458.77x = 145,420,452,487.58
  5. Step 5: Solve for x
    x = 145,420,452,487.58/440,458.77
  6. Step 6: Final answer
    x = 330,156.79

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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.