Home / 859,863.78-1,186,661.13-477,914.76

Finding the Fourth Proportional to 859,863.78, 1,186,661.13 and 477,914.76

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Solution

The fourth proportional to 859,863.78, 1,186,661.13 and 477,914.76 is: 659,549.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,863.78 : 1,186,661.13 = 477,914.76 : x
  2. Step 2: Convert to fraction form
    859,863.78/1,186,661.13 = 477,914.76/x
  3. Step 3: Cross multiply
    859,863.78x = 1,186,661.13 × 477,914.76
  4. Step 4: Simplify right side
    859,863.78x = 567,122,869,145.28
  5. Step 5: Solve for x
    x = 567,122,869,145.28/859,863.78
  6. Step 6: Final answer
    x = 659,549.67

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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.