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Finding the Fourth Proportional to 452,070.36, 678,325.86 and 185,910.84

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Solution

The fourth proportional to 452,070.36, 678,325.86 and 185,910.84 is: 278,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,070.36 : 678,325.86 = 185,910.84 : x
  2. Step 2: Convert to fraction form
    452,070.36/678,325.86 = 185,910.84/x
  3. Step 3: Cross multiply
    452,070.36x = 678,325.86 × 185,910.84
  4. Step 4: Simplify right side
    452,070.36x = 126,108,130,426.32
  5. Step 5: Solve for x
    x = 126,108,130,426.32/452,070.36
  6. Step 6: Final answer
    x = 278,956.87

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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.