Home / 631,886.05-947,829.07-211,161.93

Finding the Fourth Proportional to 631,886.05, 947,829.07 and 211,161.93

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Solution

The fourth proportional to 631,886.05, 947,829.07 and 211,161.93 is: 316,742.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,886.05 : 947,829.07 = 211,161.93 : x
  2. Step 2: Convert to fraction form
    631,886.05/947,829.07 = 211,161.93/x
  3. Step 3: Cross multiply
    631,886.05x = 947,829.07 × 211,161.93
  4. Step 4: Simplify right side
    631,886.05x = 200,145,410,992.16
  5. Step 5: Solve for x
    x = 200,145,410,992.16/631,886.05
  6. Step 6: Final answer
    x = 316,742.89

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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.