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Finding the Fourth Proportional to 338,405.40, 467,143.54 and 228,048.26

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Solution

The fourth proportional to 338,405.40, 467,143.54 and 228,048.26 is: 314,803.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,405.40 : 467,143.54 = 228,048.26 : x
  2. Step 2: Convert to fraction form
    338,405.40/467,143.54 = 228,048.26/x
  3. Step 3: Cross multiply
    338,405.40x = 467,143.54 × 228,048.26
  4. Step 4: Simplify right side
    338,405.40x = 106,531,268,561.40
  5. Step 5: Solve for x
    x = 106,531,268,561.40/338,405.40
  6. Step 6: Final answer
    x = 314,803.69

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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.