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Finding the Fourth Proportional to 674,553.94, 930,847.89 and 372,728.50

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Solution

The fourth proportional to 674,553.94, 930,847.89 and 372,728.50 is: 514,345.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,553.94 : 930,847.89 = 372,728.50 : x
  2. Step 2: Convert to fraction form
    674,553.94/930,847.89 = 372,728.50/x
  3. Step 3: Cross multiply
    674,553.94x = 930,847.89 × 372,728.50
  4. Step 4: Simplify right side
    674,553.94x = 346,953,537,767.87
  5. Step 5: Solve for x
    x = 346,953,537,767.87/674,553.94
  6. Step 6: Final answer
    x = 514,345.14

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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.