Home / 521,918.53-720,298.06-292,514.54

Finding the Fourth Proportional to 521,918.53, 720,298.06 and 292,514.54

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Solution

The fourth proportional to 521,918.53, 720,298.06 and 292,514.54 is: 403,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,918.53 : 720,298.06 = 292,514.54 : x
  2. Step 2: Convert to fraction form
    521,918.53/720,298.06 = 292,514.54/x
  3. Step 3: Cross multiply
    521,918.53x = 720,298.06 × 292,514.54
  4. Step 4: Simplify right side
    521,918.53x = 210,697,651,351.02
  5. Step 5: Solve for x
    x = 210,697,651,351.02/521,918.53
  6. Step 6: Final answer
    x = 403,698.36

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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.