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Finding the Fourth Proportional to 417,693.79, 576,418.01 and 226,707.20

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Solution

The fourth proportional to 417,693.79, 576,418.01 and 226,707.20 is: 312,856.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,693.79 : 576,418.01 = 226,707.20 : x
  2. Step 2: Convert to fraction form
    417,693.79/576,418.01 = 226,707.20/x
  3. Step 3: Cross multiply
    417,693.79x = 576,418.01 × 226,707.20
  4. Step 4: Simplify right side
    417,693.79x = 130,678,111,222.61
  5. Step 5: Solve for x
    x = 130,678,111,222.61/417,693.79
  6. Step 6: Final answer
    x = 312,856.25

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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.