Home / 693,764.19-957,439.03-387,841.87

Finding the Fourth Proportional to 693,764.19, 957,439.03 and 387,841.87

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Solution

The fourth proportional to 693,764.19, 957,439.03 and 387,841.87 is: 535,246.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,764.19 : 957,439.03 = 387,841.87 : x
  2. Step 2: Convert to fraction form
    693,764.19/957,439.03 = 387,841.87/x
  3. Step 3: Cross multiply
    693,764.19x = 957,439.03 × 387,841.87
  4. Step 4: Simplify right side
    693,764.19x = 371,334,943,806.19
  5. Step 5: Solve for x
    x = 371,334,943,806.19/693,764.19
  6. Step 6: Final answer
    x = 535,246.63

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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.