Home / 783,721.70-1,175,582.55-409,859.30

Finding the Fourth Proportional to 783,721.70, 1,175,582.55 and 409,859.30

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Solution

The fourth proportional to 783,721.70, 1,175,582.55 and 409,859.30 is: 614,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,721.70 : 1,175,582.55 = 409,859.30 : x
  2. Step 2: Convert to fraction form
    783,721.70/1,175,582.55 = 409,859.30/x
  3. Step 3: Cross multiply
    783,721.70x = 1,175,582.55 × 409,859.30
  4. Step 4: Simplify right side
    783,721.70x = 481,823,441,035.22
  5. Step 5: Solve for x
    x = 481,823,441,035.22/783,721.70
  6. Step 6: Final answer
    x = 614,788.95

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1.5x scale

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.