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Finding the Fourth Proportional to 389,800.38, 537,924.52 and 210,952.38

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Solution

The fourth proportional to 389,800.38, 537,924.52 and 210,952.38 is: 291,114.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,800.38 : 537,924.52 = 210,952.38 : x
  2. Step 2: Convert to fraction form
    389,800.38/537,924.52 = 210,952.38/x
  3. Step 3: Cross multiply
    389,800.38x = 537,924.52 × 210,952.38
  4. Step 4: Simplify right side
    389,800.38x = 113,476,455,064.74
  5. Step 5: Solve for x
    x = 113,476,455,064.74/389,800.38
  6. Step 6: Final answer
    x = 291,114.28

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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.