Home / 806,953.32-1,209,432.24-407,707.56

Finding the Fourth Proportional to 806,953.32, 1,209,432.24 and 407,707.56

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Solution

The fourth proportional to 806,953.32, 1,209,432.24 and 407,707.56 is: 611,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,953.32 : 1,209,432.24 = 407,707.56 : x
  2. Step 2: Convert to fraction form
    806,953.32/1,209,432.24 = 407,707.56/x
  3. Step 3: Cross multiply
    806,953.32x = 1,209,432.24 × 407,707.56
  4. Step 4: Simplify right side
    806,953.32x = 493,094,667,555.73
  5. Step 5: Solve for x
    x = 493,094,667,555.73/806,953.32
  6. Step 6: Final answer
    x = 611,057.24

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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.