Home / 678,899.23-936,897.44-372,995.42

Finding the Fourth Proportional to 678,899.23, 936,897.44 and 372,995.42

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Solution

The fourth proportional to 678,899.23, 936,897.44 and 372,995.42 is: 514,742.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,899.23 : 936,897.44 = 372,995.42 : x
  2. Step 2: Convert to fraction form
    678,899.23/936,897.44 = 372,995.42/x
  3. Step 3: Cross multiply
    678,899.23x = 936,897.44 × 372,995.42
  4. Step 4: Simplify right side
    678,899.23x = 349,458,457,404.46
  5. Step 5: Solve for x
    x = 349,458,457,404.46/678,899.23
  6. Step 6: Final answer
    x = 514,742.75

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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.