Home / 628,642,574.25-861,244,233.57-605,079,364.83

Finding the Fourth Proportional to 628,642,574.25, 861,244,233.57 and 605,079,364.83

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Solution

The fourth proportional to 628,642,574.25, 861,244,233.57 and 605,079,364.83 is: 828,962,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,642,574.25 : 861,244,233.57 = 605,079,364.83 : x
  2. Step 2: Convert to fraction form
    628,642,574.25/861,244,233.57 = 605,079,364.83/x
  3. Step 3: Cross multiply
    628,642,574.25x = 861,244,233.57 × 605,079,364.83
  4. Step 4: Simplify right side
    628,642,574.25x = 521,121,113,812,035,840
  5. Step 5: Solve for x
    x = 521,121,113,812,035,840/628,642,574.25
  6. Step 6: Final answer
    x = 828,962,490.23

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.