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Finding the Fourth Proportional to 375,698.91, 563,580.45 and 207,335.45

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Solution

The fourth proportional to 375,698.91, 563,580.45 and 207,335.45 is: 311,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,698.91 : 563,580.45 = 207,335.45 : x
  2. Step 2: Convert to fraction form
    375,698.91/563,580.45 = 207,335.45/x
  3. Step 3: Cross multiply
    375,698.91x = 563,580.45 × 207,335.45
  4. Step 4: Simplify right side
    375,698.91x = 116,850,203,394.05
  5. Step 5: Solve for x
    x = 116,850,203,394.05/375,698.91
  6. Step 6: Final answer
    x = 311,020.87

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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.