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Finding the Fourth Proportional to 552,865.05, 763,189.18 and 371,682.06

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Solution

The fourth proportional to 552,865.05, 763,189.18 and 371,682.06 is: 513,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,865.05 : 763,189.18 = 371,682.06 : x
  2. Step 2: Convert to fraction form
    552,865.05/763,189.18 = 371,682.06/x
  3. Step 3: Cross multiply
    552,865.05x = 763,189.18 × 371,682.06
  4. Step 4: Simplify right side
    552,865.05x = 283,663,726,641.67
  5. Step 5: Solve for x
    x = 283,663,726,641.67/552,865.05
  6. Step 6: Final answer
    x = 513,079.51

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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.