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Finding the Fourth Proportional to 417,707, 576,420.24 and 226,716.32

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Solution

The fourth proportional to 417,707, 576,420.24 and 226,716.32 is: 312,860.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,707 : 576,420.24 = 226,716.32 : x
  2. Step 2: Convert to fraction form
    417,707/576,420.24 = 226,716.32/x
  3. Step 3: Cross multiply
    417,707x = 576,420.24 × 226,716.32
  4. Step 4: Simplify right side
    417,707x = 130,683,875,586.32
  5. Step 5: Solve for x
    x = 130,683,875,586.32/417,707
  6. Step 6: Final answer
    x = 312,860.15

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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.