Home / 716,392.85-988,583.13-394,050.92

Finding the Fourth Proportional to 716,392.85, 988,583.13 and 394,050.92

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Solution

The fourth proportional to 716,392.85, 988,583.13 and 394,050.92 is: 543,768.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,392.85 : 988,583.13 = 394,050.92 : x
  2. Step 2: Convert to fraction form
    716,392.85/988,583.13 = 394,050.92/x
  3. Step 3: Cross multiply
    716,392.85x = 988,583.13 × 394,050.92
  4. Step 4: Simplify right side
    716,392.85x = 389,552,086,930.06
  5. Step 5: Solve for x
    x = 389,552,086,930.06/716,392.85
  6. Step 6: Final answer
    x = 543,768.81

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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.