Home / 678,899.84-936,882.14-372,995.94

Finding the Fourth Proportional to 678,899.84, 936,882.14 and 372,995.94

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Solution

The fourth proportional to 678,899.84, 936,882.14 and 372,995.94 is: 514,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,899.84 : 936,882.14 = 372,995.94 : x
  2. Step 2: Convert to fraction form
    678,899.84/936,882.14 = 372,995.94/x
  3. Step 3: Cross multiply
    678,899.84x = 936,882.14 × 372,995.94
  4. Step 4: Simplify right side
    678,899.84x = 349,453,234,478.51
  5. Step 5: Solve for x
    x = 349,453,234,478.51/678,899.84
  6. Step 6: Final answer
    x = 514,734.60

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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.