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Finding the Fourth Proportional to 417,693.72, 576,411.12 and 236,440.02

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Solution

The fourth proportional to 417,693.72, 576,411.12 and 236,440.02 is: 326,283.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,693.72 : 576,411.12 = 236,440.02 : x
  2. Step 2: Convert to fraction form
    417,693.72/576,411.12 = 236,440.02/x
  3. Step 3: Cross multiply
    417,693.72x = 576,411.12 × 236,440.02
  4. Step 4: Simplify right side
    417,693.72x = 136,286,656,741.02
  5. Step 5: Solve for x
    x = 136,286,656,741.02/417,693.72
  6. Step 6: Final answer
    x = 326,283.71

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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.