Home / 678,933.72-936,929.07-373,029.84

Finding the Fourth Proportional to 678,933.72, 936,929.07 and 373,029.84

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Solution

The fourth proportional to 678,933.72, 936,929.07 and 373,029.84 is: 514,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,933.72 : 936,929.07 = 373,029.84 : x
  2. Step 2: Convert to fraction form
    678,933.72/936,929.07 = 373,029.84/x
  3. Step 3: Cross multiply
    678,933.72x = 936,929.07 × 373,029.84
  4. Step 4: Simplify right side
    678,933.72x = 349,502,501,073.45
  5. Step 5: Solve for x
    x = 349,502,501,073.45/678,933.72
  6. Step 6: Final answer
    x = 514,781.47

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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.