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Finding the Fourth Proportional to 426,464.46, 640,083.60 and 226,952.82

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Solution

The fourth proportional to 426,464.46, 640,083.60 and 226,952.82 is: 340,635.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,464.46 : 640,083.60 = 226,952.82 : x
  2. Step 2: Convert to fraction form
    426,464.46/640,083.60 = 226,952.82/x
  3. Step 3: Cross multiply
    426,464.46x = 640,083.60 × 226,952.82
  4. Step 4: Simplify right side
    426,464.46x = 145,268,778,055.75
  5. Step 5: Solve for x
    x = 145,268,778,055.75/426,464.46
  6. Step 6: Final answer
    x = 340,635.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.