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Finding the Fourth Proportional to 671,997.76, 927,356.51 and 370,191.76

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Solution

The fourth proportional to 671,997.76, 927,356.51 and 370,191.76 is: 510,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,997.76 : 927,356.51 = 370,191.76 : x
  2. Step 2: Convert to fraction form
    671,997.76/927,356.51 = 370,191.76/x
  3. Step 3: Cross multiply
    671,997.76x = 927,356.51 × 370,191.76
  4. Step 4: Simplify right side
    671,997.76x = 343,299,737,191.45
  5. Step 5: Solve for x
    x = 343,299,737,191.45/671,997.76
  6. Step 6: Final answer
    x = 510,864.41

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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.