Home / 665,935.32-997,324.56-381,780.24

Finding the Fourth Proportional to 665,935.32, 997,324.56 and 381,780.24

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Solution

The fourth proportional to 665,935.32, 997,324.56 and 381,780.24 is: 571,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,935.32 : 997,324.56 = 381,780.24 : x
  2. Step 2: Convert to fraction form
    665,935.32/997,324.56 = 381,780.24/x
  3. Step 3: Cross multiply
    665,935.32x = 997,324.56 × 381,780.24
  4. Step 4: Simplify right side
    665,935.32x = 380,758,809,874.69
  5. Step 5: Solve for x
    x = 380,758,809,874.69/665,935.32
  6. Step 6: Final answer
    x = 571,765.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.