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Finding the Fourth Proportional to 417,689.36, 576,402.72 and 236,398.04

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Solution

The fourth proportional to 417,689.36, 576,402.72 and 236,398.04 is: 326,224.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,689.36 : 576,402.72 = 236,398.04 : x
  2. Step 2: Convert to fraction form
    417,689.36/576,402.72 = 236,398.04/x
  3. Step 3: Cross multiply
    417,689.36x = 576,402.72 × 236,398.04
  4. Step 4: Simplify right side
    417,689.36x = 136,260,473,258.67
  5. Step 5: Solve for x
    x = 136,260,473,258.67/417,689.36
  6. Step 6: Final answer
    x = 326,224.43

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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.