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Finding the Fourth Proportional to 927,181.84, 1,279,494 and 513,717.11

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Solution

The fourth proportional to 927,181.84, 1,279,494 and 513,717.11 is: 708,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,181.84 : 1,279,494 = 513,717.11 : x
  2. Step 2: Convert to fraction form
    927,181.84/1,279,494 = 513,717.11/x
  3. Step 3: Cross multiply
    927,181.84x = 1,279,494 × 513,717.11
  4. Step 4: Simplify right side
    927,181.84x = 657,297,959,942.34
  5. Step 5: Solve for x
    x = 657,297,959,942.34/927,181.84
  6. Step 6: Final answer
    x = 708,920.23

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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.