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Finding the Fourth Proportional to 673,298.43, 928,311.39 and 431,182.95

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Solution

The fourth proportional to 673,298.43, 928,311.39 and 431,182.95 is: 594,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,298.43 : 928,311.39 = 431,182.95 : x
  2. Step 2: Convert to fraction form
    673,298.43/928,311.39 = 431,182.95/x
  3. Step 3: Cross multiply
    673,298.43x = 928,311.39 × 431,182.95
  4. Step 4: Simplify right side
    673,298.43x = 400,272,043,658.80
  5. Step 5: Solve for x
    x = 400,272,043,658.80/673,298.43
  6. Step 6: Final answer
    x = 594,494.25

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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.