Home / 498,528.36-687,984.30-283,699.35

Finding the Fourth Proportional to 498,528.36, 687,984.30 and 283,699.35

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Solution

The fourth proportional to 498,528.36, 687,984.30 and 283,699.35 is: 391,513.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,528.36 : 687,984.30 = 283,699.35 : x
  2. Step 2: Convert to fraction form
    498,528.36/687,984.30 = 283,699.35/x
  3. Step 3: Cross multiply
    498,528.36x = 687,984.30 × 283,699.35
  4. Step 4: Simplify right side
    498,528.36x = 195,180,698,720.21
  5. Step 5: Solve for x
    x = 195,180,698,720.21/498,528.36
  6. Step 6: Final answer
    x = 391,513.73

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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.