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Finding the Fourth Proportional to 535,976.20, 803,964.30 and 136,616.20

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Solution

The fourth proportional to 535,976.20, 803,964.30 and 136,616.20 is: 204,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,976.20 : 803,964.30 = 136,616.20 : x
  2. Step 2: Convert to fraction form
    535,976.20/803,964.30 = 136,616.20/x
  3. Step 3: Cross multiply
    535,976.20x = 803,964.30 × 136,616.20
  4. Step 4: Simplify right side
    535,976.20x = 109,834,547,601.66
  5. Step 5: Solve for x
    x = 109,834,547,601.66/535,976.20
  6. Step 6: Final answer
    x = 204,924.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.