Home / 678,282.76-936,033.84-423,781.56

Finding the Fourth Proportional to 678,282.76, 936,033.84 and 423,781.56

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Solution

The fourth proportional to 678,282.76, 936,033.84 and 423,781.56 is: 584,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,282.76 : 936,033.84 = 423,781.56 : x
  2. Step 2: Convert to fraction form
    678,282.76/936,033.84 = 423,781.56/x
  3. Step 3: Cross multiply
    678,282.76x = 936,033.84 × 423,781.56
  4. Step 4: Simplify right side
    678,282.76x = 396,673,880,927.99
  5. Step 5: Solve for x
    x = 396,673,880,927.99/678,282.76
  6. Step 6: Final answer
    x = 584,820.82

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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.