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Finding the Fourth Proportional to 338,338.68, 466,696.20 and 217,637.32

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Solution

The fourth proportional to 338,338.68, 466,696.20 and 217,637.32 is: 300,203.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,338.68 : 466,696.20 = 217,637.32 : x
  2. Step 2: Convert to fraction form
    338,338.68/466,696.20 = 217,637.32/x
  3. Step 3: Cross multiply
    338,338.68x = 466,696.20 × 217,637.32
  4. Step 4: Simplify right side
    338,338.68x = 101,570,510,222.18
  5. Step 5: Solve for x
    x = 101,570,510,222.18/338,338.68
  6. Step 6: Final answer
    x = 300,203.66

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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.