Home / 686,895.92-1,025,340.69-636,242.73

Finding the Fourth Proportional to 686,895.92, 1,025,340.69 and 636,242.73

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Solution

The fourth proportional to 686,895.92, 1,025,340.69 and 636,242.73 is: 949,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,895.92 : 1,025,340.69 = 636,242.73 : x
  2. Step 2: Convert to fraction form
    686,895.92/1,025,340.69 = 636,242.73/x
  3. Step 3: Cross multiply
    686,895.92x = 1,025,340.69 × 636,242.73
  4. Step 4: Simplify right side
    686,895.92x = 652,365,553,554.75
  5. Step 5: Solve for x
    x = 652,365,553,554.75/686,895.92
  6. Step 6: Final answer
    x = 949,729.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.