Home / 677,625.23-935,152.14-405,640.49

Finding the Fourth Proportional to 677,625.23, 935,152.14 and 405,640.49

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Solution

The fourth proportional to 677,625.23, 935,152.14 and 405,640.49 is: 559,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,625.23 : 935,152.14 = 405,640.49 : x
  2. Step 2: Convert to fraction form
    677,625.23/935,152.14 = 405,640.49/x
  3. Step 3: Cross multiply
    677,625.23x = 935,152.14 × 405,640.49
  4. Step 4: Simplify right side
    677,625.23x = 379,335,567,618.39
  5. Step 5: Solve for x
    x = 379,335,567,618.39/677,625.23
  6. Step 6: Final answer
    x = 559,801.43

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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.