Home / 669,115.20-923,361.12-382,664.16

Finding the Fourth Proportional to 669,115.20, 923,361.12 and 382,664.16

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Solution

The fourth proportional to 669,115.20, 923,361.12 and 382,664.16 is: 528,066.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,115.20 : 923,361.12 = 382,664.16 : x
  2. Step 2: Convert to fraction form
    669,115.20/923,361.12 = 382,664.16/x
  3. Step 3: Cross multiply
    669,115.20x = 923,361.12 × 382,664.16
  4. Step 4: Simplify right side
    669,115.20x = 353,337,207,361.46
  5. Step 5: Solve for x
    x = 353,337,207,361.46/669,115.20
  6. Step 6: Final answer
    x = 528,066.33

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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.