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Finding the Fourth Proportional to 892,018.65, 1,230,994.92 and 484,124.01

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Solution

The fourth proportional to 892,018.65, 1,230,994.92 and 484,124.01 is: 668,096.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,018.65 : 1,230,994.92 = 484,124.01 : x
  2. Step 2: Convert to fraction form
    892,018.65/1,230,994.92 = 484,124.01/x
  3. Step 3: Cross multiply
    892,018.65x = 1,230,994.92 × 484,124.01
  4. Step 4: Simplify right side
    892,018.65x = 595,954,196,960.03
  5. Step 5: Solve for x
    x = 595,954,196,960.03/892,018.65
  6. Step 6: Final answer
    x = 668,096.12

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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.