Home / 677,627.22-935,154.90-405,642.48

Finding the Fourth Proportional to 677,627.22, 935,154.90 and 405,642.48

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Solution

The fourth proportional to 677,627.22, 935,154.90 and 405,642.48 is: 559,804.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,627.22 : 935,154.90 = 405,642.48 : x
  2. Step 2: Convert to fraction form
    677,627.22/935,154.90 = 405,642.48/x
  3. Step 3: Cross multiply
    677,627.22x = 935,154.90 × 405,642.48
  4. Step 4: Simplify right side
    677,627.22x = 379,338,552,820.15
  5. Step 5: Solve for x
    x = 379,338,552,820.15/677,627.22
  6. Step 6: Final answer
    x = 559,804.18

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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.