Home / 401,550.03-602,380.60-135,386.66

Finding the Fourth Proportional to 401,550.03, 602,380.60 and 135,386.66

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Solution

The fourth proportional to 401,550.03, 602,380.60 and 135,386.66 is: 203,098.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,550.03 : 602,380.60 = 135,386.66 : x
  2. Step 2: Convert to fraction form
    401,550.03/602,380.60 = 135,386.66/x
  3. Step 3: Cross multiply
    401,550.03x = 602,380.60 × 135,386.66
  4. Step 4: Simplify right side
    401,550.03x = 81,554,298,650.28
  5. Step 5: Solve for x
    x = 81,554,298,650.28/401,550.03
  6. Step 6: Final answer
    x = 203,098.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.