Home / 681,531.98-940,514.09-375,608.34

Finding the Fourth Proportional to 681,531.98, 940,514.09 and 375,608.34

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Solution

The fourth proportional to 681,531.98, 940,514.09 and 375,608.34 is: 518,339.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,531.98 : 940,514.09 = 375,608.34 : x
  2. Step 2: Convert to fraction form
    681,531.98/940,514.09 = 375,608.34/x
  3. Step 3: Cross multiply
    681,531.98x = 940,514.09 × 375,608.34
  4. Step 4: Simplify right side
    681,531.98x = 353,264,934,213.47
  5. Step 5: Solve for x
    x = 353,264,934,213.47/681,531.98
  6. Step 6: Final answer
    x = 518,339.49

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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.