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Finding the Fourth Proportional to 375,694.80, 563,542.20 and 329,038.80

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Solution

The fourth proportional to 375,694.80, 563,542.20 and 329,038.80 is: 493,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,694.80 : 563,542.20 = 329,038.80 : x
  2. Step 2: Convert to fraction form
    375,694.80/563,542.20 = 329,038.80/x
  3. Step 3: Cross multiply
    375,694.80x = 563,542.20 × 329,038.80
  4. Step 4: Simplify right side
    375,694.80x = 185,427,249,237.36
  5. Step 5: Solve for x
    x = 185,427,249,237.36/375,694.80
  6. Step 6: Final answer
    x = 493,558.20

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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.