Home / 669,371.24-923,639.38-393,741.60

Finding the Fourth Proportional to 669,371.24, 923,639.38 and 393,741.60

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Solution

The fourth proportional to 669,371.24, 923,639.38 and 393,741.60 is: 543,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,371.24 : 923,639.38 = 393,741.60 : x
  2. Step 2: Convert to fraction form
    669,371.24/923,639.38 = 393,741.60/x
  3. Step 3: Cross multiply
    669,371.24x = 923,639.38 × 393,741.60
  4. Step 4: Simplify right side
    669,371.24x = 363,675,247,304.21
  5. Step 5: Solve for x
    x = 363,675,247,304.21/669,371.24
  6. Step 6: Final answer
    x = 543,308.74

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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.