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Finding the Fourth Proportional to 417,686.10, 576,308.02 and 236,398.03

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Solution

The fourth proportional to 417,686.10, 576,308.02 and 236,398.03 is: 326,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,686.10 : 576,308.02 = 236,398.03 : x
  2. Step 2: Convert to fraction form
    417,686.10/576,308.02 = 236,398.03/x
  3. Step 3: Cross multiply
    417,686.10x = 576,308.02 × 236,398.03
  4. Step 4: Simplify right side
    417,686.10x = 136,238,080,601.20
  5. Step 5: Solve for x
    x = 136,238,080,601.20/417,686.10
  6. Step 6: Final answer
    x = 326,173.36

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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.