Home / 1,180,521.84-1,629,116.76-643,974

Finding the Fourth Proportional to 1,180,521.84, 1,629,116.76 and 643,974

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Solution

The fourth proportional to 1,180,521.84, 1,629,116.76 and 643,974 is: 888,682.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,521.84 : 1,629,116.76 = 643,974 : x
  2. Step 2: Convert to fraction form
    1,180,521.84/1,629,116.76 = 643,974/x
  3. Step 3: Cross multiply
    1,180,521.84x = 1,629,116.76 × 643,974
  4. Step 4: Simplify right side
    1,180,521.84x = 1,049,108,836,404.24
  5. Step 5: Solve for x
    x = 1,049,108,836,404.24/1,180,521.84
  6. Step 6: Final answer
    x = 888,682.28

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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.