Home / 721,777,185.06-996,053,252.58-391,752,392.10

Finding the Fourth Proportional to 721,777,185.06, 996,053,252.58 and 391,752,392.10

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Solution

The fourth proportional to 721,777,185.06, 996,053,252.58 and 391,752,392.10 is: 540,618,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,777,185.06 : 996,053,252.58 = 391,752,392.10 : x
  2. Step 2: Convert to fraction form
    721,777,185.06/996,053,252.58 = 391,752,392.10/x
  3. Step 3: Cross multiply
    721,777,185.06x = 996,053,252.58 × 391,752,392.10
  4. Step 4: Simplify right side
    721,777,185.06x = 390,206,244,357,200,512
  5. Step 5: Solve for x
    x = 390,206,244,357,200,512/721,777,185.06
  6. Step 6: Final answer
    x = 540,618,701.22

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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.