Home / 669,238.56-923,143.50-397,127.16

Finding the Fourth Proportional to 669,238.56, 923,143.50 and 397,127.16

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Solution

The fourth proportional to 669,238.56, 923,143.50 and 397,127.16 is: 547,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,238.56 : 923,143.50 = 397,127.16 : x
  2. Step 2: Convert to fraction form
    669,238.56/923,143.50 = 397,127.16/x
  3. Step 3: Cross multiply
    669,238.56x = 923,143.50 × 397,127.16
  4. Step 4: Simplify right side
    669,238.56x = 366,605,356,427.46
  5. Step 5: Solve for x
    x = 366,605,356,427.46/669,238.56
  6. Step 6: Final answer
    x = 547,794.73

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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.