Home / 669,230.56-923,132.46-397,119.16

Finding the Fourth Proportional to 669,230.56, 923,132.46 and 397,119.16

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Solution

The fourth proportional to 669,230.56, 923,132.46 and 397,119.16 is: 547,783.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,230.56 : 923,132.46 = 397,119.16 : x
  2. Step 2: Convert to fraction form
    669,230.56/923,132.46 = 397,119.16/x
  3. Step 3: Cross multiply
    669,230.56x = 923,132.46 × 397,119.16
  4. Step 4: Simplify right side
    669,230.56x = 366,593,587,083.93
  5. Step 5: Solve for x
    x = 366,593,587,083.93/669,230.56
  6. Step 6: Final answer
    x = 547,783.69

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Double scale
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Similar ratio
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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.