Home / 525,300.66-787,966.92-205,439.76

Finding the Fourth Proportional to 525,300.66, 787,966.92 and 205,439.76

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Solution

The fourth proportional to 525,300.66, 787,966.92 and 205,439.76 is: 308,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,300.66 : 787,966.92 = 205,439.76 : x
  2. Step 2: Convert to fraction form
    525,300.66/787,966.92 = 205,439.76/x
  3. Step 3: Cross multiply
    525,300.66x = 787,966.92 × 205,439.76
  4. Step 4: Simplify right side
    525,300.66x = 161,879,734,932.74
  5. Step 5: Solve for x
    x = 161,879,734,932.74/525,300.66
  6. Step 6: Final answer
    x = 308,165.87

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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.