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Finding the Fourth Proportional to 375,658.80, 563,438.88 and 186,045.36

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Solution

The fourth proportional to 375,658.80, 563,438.88 and 186,045.36 is: 279,043.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,658.80 : 563,438.88 = 186,045.36 : x
  2. Step 2: Convert to fraction form
    375,658.80/563,438.88 = 186,045.36/x
  3. Step 3: Cross multiply
    375,658.80x = 563,438.88 × 186,045.36
  4. Step 4: Simplify right side
    375,658.80x = 104,825,189,267.60
  5. Step 5: Solve for x
    x = 104,825,189,267.60/375,658.80
  6. Step 6: Final answer
    x = 279,043.61

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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.