Home / 498,186.36-687,512.34-283,357.35

Finding the Fourth Proportional to 498,186.36, 687,512.34 and 283,357.35

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Solution

The fourth proportional to 498,186.36, 687,512.34 and 283,357.35 is: 391,041.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,186.36 : 687,512.34 = 283,357.35 : x
  2. Step 2: Convert to fraction form
    498,186.36/687,512.34 = 283,357.35/x
  3. Step 3: Cross multiply
    498,186.36x = 687,512.34 × 283,357.35
  4. Step 4: Simplify right side
    498,186.36x = 194,811,674,754.70
  5. Step 5: Solve for x
    x = 194,811,674,754.70/498,186.36
  6. Step 6: Final answer
    x = 391,041.77

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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.