Home / 686,375.71-947,196.84-376,277.74

Finding the Fourth Proportional to 686,375.71, 947,196.84 and 376,277.74

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Solution

The fourth proportional to 686,375.71, 947,196.84 and 376,277.74 is: 519,262.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,375.71 : 947,196.84 = 376,277.74 : x
  2. Step 2: Convert to fraction form
    686,375.71/947,196.84 = 376,277.74/x
  3. Step 3: Cross multiply
    686,375.71x = 947,196.84 × 376,277.74
  4. Step 4: Simplify right side
    686,375.71x = 356,409,086,290.34
  5. Step 5: Solve for x
    x = 356,409,086,290.34/686,375.71
  6. Step 6: Final answer
    x = 519,262.38

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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.