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Finding the Fourth Proportional to 674,165.03, 930,315.24 and 372,352.55

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Solution

The fourth proportional to 674,165.03, 930,315.24 and 372,352.55 is: 513,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,165.03 : 930,315.24 = 372,352.55 : x
  2. Step 2: Convert to fraction form
    674,165.03/930,315.24 = 372,352.55/x
  3. Step 3: Cross multiply
    674,165.03x = 930,315.24 × 372,352.55
  4. Step 4: Simplify right side
    674,165.03x = 346,405,251,917.86
  5. Step 5: Solve for x
    x = 346,405,251,917.86/674,165.03
  6. Step 6: Final answer
    x = 513,828.57

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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.