Home / 677,649.02-935,185.14-405,664.46

Finding the Fourth Proportional to 677,649.02, 935,185.14 and 405,664.46

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Solution

The fourth proportional to 677,649.02, 935,185.14 and 405,664.46 is: 559,834.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,649.02 : 935,185.14 = 405,664.46 : x
  2. Step 2: Convert to fraction form
    677,649.02/935,185.14 = 405,664.46/x
  3. Step 3: Cross multiply
    677,649.02x = 935,185.14 × 405,664.46
  4. Step 4: Simplify right side
    677,649.02x = 379,371,374,818.12
  5. Step 5: Solve for x
    x = 379,371,374,818.12/677,649.02
  6. Step 6: Final answer
    x = 559,834.61

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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.