Home / 369,556.11-509,987.52-199,790.28

Finding the Fourth Proportional to 369,556.11, 509,987.52 and 199,790.28

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Solution

The fourth proportional to 369,556.11, 509,987.52 and 199,790.28 is: 275,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,556.11 : 509,987.52 = 199,790.28 : x
  2. Step 2: Convert to fraction form
    369,556.11/509,987.52 = 199,790.28/x
  3. Step 3: Cross multiply
    369,556.11x = 509,987.52 × 199,790.28
  4. Step 4: Simplify right side
    369,556.11x = 101,890,549,417.31
  5. Step 5: Solve for x
    x = 101,890,549,417.31/369,556.11
  6. Step 6: Final answer
    x = 275,710.63

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1.5x scale

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.