Home / 370,186.11-510,857.01-200,420.37

Finding the Fourth Proportional to 370,186.11, 510,857.01 and 200,420.37

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Solution

The fourth proportional to 370,186.11, 510,857.01 and 200,420.37 is: 276,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,186.11 : 510,857.01 = 200,420.37 : x
  2. Step 2: Convert to fraction form
    370,186.11/510,857.01 = 200,420.37/x
  3. Step 3: Cross multiply
    370,186.11x = 510,857.01 × 200,420.37
  4. Step 4: Simplify right side
    370,186.11x = 102,386,150,961.29
  5. Step 5: Solve for x
    x = 102,386,150,961.29/370,186.11
  6. Step 6: Final answer
    x = 276,580.21

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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.