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Finding the Fourth Proportional to 374,890.15, 517,335.54 and 213,797.05

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Solution

The fourth proportional to 374,890.15, 517,335.54 and 213,797.05 is: 295,032.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,890.15 : 517,335.54 = 213,797.05 : x
  2. Step 2: Convert to fraction form
    374,890.15/517,335.54 = 213,797.05/x
  3. Step 3: Cross multiply
    374,890.15x = 517,335.54 × 213,797.05
  4. Step 4: Simplify right side
    374,890.15x = 110,604,810,217.08
  5. Step 5: Solve for x
    x = 110,604,810,217.08/374,890.15
  6. Step 6: Final answer
    x = 295,032.58

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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.