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Finding the Fourth Proportional to 673,180.40, 928,896.94 and 386,700.41

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Solution

The fourth proportional to 673,180.40, 928,896.94 and 386,700.41 is: 533,593.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,180.40 : 928,896.94 = 386,700.41 : x
  2. Step 2: Convert to fraction form
    673,180.40/928,896.94 = 386,700.41/x
  3. Step 3: Cross multiply
    673,180.40x = 928,896.94 × 386,700.41
  4. Step 4: Simplify right side
    673,180.40x = 359,204,827,545.75
  5. Step 5: Solve for x
    x = 359,204,827,545.75/673,180.40
  6. Step 6: Final answer
    x = 533,593.71

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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.