Home / 631,902.16-947,853.30-211,178.02

Finding the Fourth Proportional to 631,902.16, 947,853.30 and 211,178.02

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Solution

The fourth proportional to 631,902.16, 947,853.30 and 211,178.02 is: 316,767.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,902.16 : 947,853.30 = 211,178.02 : x
  2. Step 2: Convert to fraction form
    631,902.16/947,853.30 = 211,178.02/x
  3. Step 3: Cross multiply
    631,902.16x = 947,853.30 × 211,178.02
  4. Step 4: Simplify right side
    631,902.16x = 200,165,783,144.47
  5. Step 5: Solve for x
    x = 200,165,783,144.47/631,902.16
  6. Step 6: Final answer
    x = 316,767.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.