Home / 631,173.11-871,022.09-344,693.18

Finding the Fourth Proportional to 631,173.11, 871,022.09 and 344,693.18

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Solution

The fourth proportional to 631,173.11, 871,022.09 and 344,693.18 is: 475,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,173.11 : 871,022.09 = 344,693.18 : x
  2. Step 2: Convert to fraction form
    631,173.11/871,022.09 = 344,693.18/x
  3. Step 3: Cross multiply
    631,173.11x = 871,022.09 × 344,693.18
  4. Step 4: Simplify right side
    631,173.11x = 300,235,377,091.63
  5. Step 5: Solve for x
    x = 300,235,377,091.63/631,173.11
  6. Step 6: Final answer
    x = 475,678.34

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Double scale
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1.5x scale

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.