Home / 678,019.25-935,666.57-376,261.81

Finding the Fourth Proportional to 678,019.25, 935,666.57 and 376,261.81

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Solution

The fourth proportional to 678,019.25, 935,666.57 and 376,261.81 is: 519,241.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,019.25 : 935,666.57 = 376,261.81 : x
  2. Step 2: Convert to fraction form
    678,019.25/935,666.57 = 376,261.81/x
  3. Step 3: Cross multiply
    678,019.25x = 935,666.57 × 376,261.81
  4. Step 4: Simplify right side
    678,019.25x = 352,055,597,184.69
  5. Step 5: Solve for x
    x = 352,055,597,184.69/678,019.25
  6. Step 6: Final answer
    x = 519,241.30

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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.