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Finding the Fourth Proportional to 398,064.37, 549,239.92 and 333,793.57

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Solution

The fourth proportional to 398,064.37, 549,239.92 and 333,793.57 is: 460,560.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,064.37 : 549,239.92 = 333,793.57 : x
  2. Step 2: Convert to fraction form
    398,064.37/549,239.92 = 333,793.57/x
  3. Step 3: Cross multiply
    398,064.37x = 549,239.92 × 333,793.57
  4. Step 4: Simplify right side
    398,064.37x = 183,332,753,683.31
  5. Step 5: Solve for x
    x = 183,332,753,683.31/398,064.37
  6. Step 6: Final answer
    x = 460,560.57

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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.