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Finding the Fourth Proportional to 553,937.70, 765,064.58 and 372,334.34

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Solution

The fourth proportional to 553,937.70, 765,064.58 and 372,334.34 is: 514,245.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,937.70 : 765,064.58 = 372,334.34 : x
  2. Step 2: Convert to fraction form
    553,937.70/765,064.58 = 372,334.34/x
  3. Step 3: Cross multiply
    553,937.70x = 765,064.58 × 372,334.34
  4. Step 4: Simplify right side
    553,937.70x = 284,859,815,451.68
  5. Step 5: Solve for x
    x = 284,859,815,451.68/553,937.70
  6. Step 6: Final answer
    x = 514,245.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.