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Finding the Fourth Proportional to 407,910.68, 611,655.90 and 183,078.36

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Solution

The fourth proportional to 407,910.68, 611,655.90 and 183,078.36 is: 274,523.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,910.68 : 611,655.90 = 183,078.36 : x
  2. Step 2: Convert to fraction form
    407,910.68/611,655.90 = 183,078.36/x
  3. Step 3: Cross multiply
    407,910.68x = 611,655.90 × 183,078.36
  4. Step 4: Simplify right side
    407,910.68x = 111,980,959,056.32
  5. Step 5: Solve for x
    x = 111,980,959,056.32/407,910.68
  6. Step 6: Final answer
    x = 274,523.24

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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.