Home / 693,135.20-1,037,953.20-455,189.60

Finding the Fourth Proportional to 693,135.20, 1,037,953.20 and 455,189.60

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Solution

The fourth proportional to 693,135.20, 1,037,953.20 and 455,189.60 is: 681,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,135.20 : 1,037,953.20 = 455,189.60 : x
  2. Step 2: Convert to fraction form
    693,135.20/1,037,953.20 = 455,189.60/x
  3. Step 3: Cross multiply
    693,135.20x = 1,037,953.20 × 455,189.60
  4. Step 4: Simplify right side
    693,135.20x = 472,465,501,926.72
  5. Step 5: Solve for x
    x = 472,465,501,926.72/693,135.20
  6. Step 6: Final answer
    x = 681,635.42

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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.