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Finding the Fourth Proportional to 674,562.21, 930,896.19 and 372,756.21

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Solution

The fourth proportional to 674,562.21, 930,896.19 and 372,756.21 is: 514,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,562.21 : 930,896.19 = 372,756.21 : x
  2. Step 2: Convert to fraction form
    674,562.21/930,896.19 = 372,756.21/x
  3. Step 3: Cross multiply
    674,562.21x = 930,896.19 × 372,756.21
  4. Step 4: Simplify right side
    674,562.21x = 346,997,335,687.84
  5. Step 5: Solve for x
    x = 346,997,335,687.84/674,562.21
  6. Step 6: Final answer
    x = 514,403.76

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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.