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Finding the Fourth Proportional to 554,977.40, 832,101.60 and 217,814.90

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Solution

The fourth proportional to 554,977.40, 832,101.60 and 217,814.90 is: 326,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,977.40 : 832,101.60 = 217,814.90 : x
  2. Step 2: Convert to fraction form
    554,977.40/832,101.60 = 217,814.90/x
  3. Step 3: Cross multiply
    554,977.40x = 832,101.60 × 217,814.90
  4. Step 4: Simplify right side
    554,977.40x = 181,244,126,793.84
  5. Step 5: Solve for x
    x = 181,244,126,793.84/554,977.40
  6. Step 6: Final answer
    x = 326,579.29

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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.