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Finding the Fourth Proportional to 763,718.52, 1,145,489.94 and 202,798.20

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Solution

The fourth proportional to 763,718.52, 1,145,489.94 and 202,798.20 is: 304,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,718.52 : 1,145,489.94 = 202,798.20 : x
  2. Step 2: Convert to fraction form
    763,718.52/1,145,489.94 = 202,798.20/x
  3. Step 3: Cross multiply
    763,718.52x = 1,145,489.94 × 202,798.20
  4. Step 4: Simplify right side
    763,718.52x = 232,303,297,950.11
  5. Step 5: Solve for x
    x = 232,303,297,950.11/763,718.52
  6. Step 6: Final answer
    x = 304,173.97

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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.