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Finding the Fourth Proportional to 364,139.62, 502,512.73 and 202,991.20

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Solution

The fourth proportional to 364,139.62, 502,512.73 and 202,991.20 is: 280,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,139.62 : 502,512.73 = 202,991.20 : x
  2. Step 2: Convert to fraction form
    364,139.62/502,512.73 = 202,991.20/x
  3. Step 3: Cross multiply
    364,139.62x = 502,512.73 × 202,991.20
  4. Step 4: Simplify right side
    364,139.62x = 102,005,662,077.98
  5. Step 5: Solve for x
    x = 102,005,662,077.98/364,139.62
  6. Step 6: Final answer
    x = 280,127.89

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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.