Home / 538,966.20-808,643.70-223,519.80

Finding the Fourth Proportional to 538,966.20, 808,643.70 and 223,519.80

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Solution

The fourth proportional to 538,966.20, 808,643.70 and 223,519.80 is: 335,360.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,966.20 : 808,643.70 = 223,519.80 : x
  2. Step 2: Convert to fraction form
    538,966.20/808,643.70 = 223,519.80/x
  3. Step 3: Cross multiply
    538,966.20x = 808,643.70 × 223,519.80
  4. Step 4: Simplify right side
    538,966.20x = 180,747,878,095.26
  5. Step 5: Solve for x
    x = 180,747,878,095.26/538,966.20
  6. Step 6: Final answer
    x = 335,360.32

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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.