Home / 661,837.00-913,031.71-389,774.66

Finding the Fourth Proportional to 661,837.00, 913,031.71 and 389,774.66

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Solution

The fourth proportional to 661,837.00, 913,031.71 and 389,774.66 is: 537,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,837.00 : 913,031.71 = 389,774.66 : x
  2. Step 2: Convert to fraction form
    661,837.00/913,031.71 = 389,774.66/x
  3. Step 3: Cross multiply
    661,837.00x = 913,031.71 × 389,774.66
  4. Step 4: Simplify right side
    661,837.00x = 355,876,618,794.87
  5. Step 5: Solve for x
    x = 355,876,618,794.87/661,837.00
  6. Step 6: Final answer
    x = 537,710.37

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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.