Home / 859,680.12-1,186,467.66-520,151.16

Finding the Fourth Proportional to 859,680.12, 1,186,467.66 and 520,151.16

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Solution

The fourth proportional to 859,680.12, 1,186,467.66 and 520,151.16 is: 717,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,680.12 : 1,186,467.66 = 520,151.16 : x
  2. Step 2: Convert to fraction form
    859,680.12/1,186,467.66 = 520,151.16/x
  3. Step 3: Cross multiply
    859,680.12x = 1,186,467.66 × 520,151.16
  4. Step 4: Simplify right side
    859,680.12x = 617,142,529,651.49
  5. Step 5: Solve for x
    x = 617,142,529,651.49/859,680.12
  6. Step 6: Final answer
    x = 717,874.61

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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.