Home / 686,799.20-1,030,198.80-434,856.80

Finding the Fourth Proportional to 686,799.20, 1,030,198.80 and 434,856.80

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Solution

The fourth proportional to 686,799.20, 1,030,198.80 and 434,856.80 is: 652,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,799.20 : 1,030,198.80 = 434,856.80 : x
  2. Step 2: Convert to fraction form
    686,799.20/1,030,198.80 = 434,856.80/x
  3. Step 3: Cross multiply
    686,799.20x = 1,030,198.80 × 434,856.80
  4. Step 4: Simplify right side
    686,799.20x = 447,988,953,531.84
  5. Step 5: Solve for x
    x = 447,988,953,531.84/686,799.20
  6. Step 6: Final answer
    x = 652,285.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.