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Finding the Fourth Proportional to 674,574.44, 930,876.10 and 372,749

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Solution

The fourth proportional to 674,574.44, 930,876.10 and 372,749 is: 514,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,574.44 : 930,876.10 = 372,749 : x
  2. Step 2: Convert to fraction form
    674,574.44/930,876.10 = 372,749/x
  3. Step 3: Cross multiply
    674,574.44x = 930,876.10 × 372,749
  4. Step 4: Simplify right side
    674,574.44x = 346,983,135,398.90
  5. Step 5: Solve for x
    x = 346,983,135,398.90/674,574.44
  6. Step 6: Final answer
    x = 514,373.38

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1.5x scale

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.