Home / 693,976.47-957,682.12-388,053.45

Finding the Fourth Proportional to 693,976.47, 957,682.12 and 388,053.45

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Solution

The fourth proportional to 693,976.47, 957,682.12 and 388,053.45 is: 535,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,976.47 : 957,682.12 = 388,053.45 : x
  2. Step 2: Convert to fraction form
    693,976.47/957,682.12 = 388,053.45/x
  3. Step 3: Cross multiply
    693,976.47x = 957,682.12 × 388,053.45
  4. Step 4: Simplify right side
    693,976.47x = 371,631,844,910.77
  5. Step 5: Solve for x
    x = 371,631,844,910.77/693,976.47
  6. Step 6: Final answer
    x = 535,510.73

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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.