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Finding the Fourth Proportional to 216,772.04, 326,782.80 and 202,321.64

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Solution

The fourth proportional to 216,772.04, 326,782.80 and 202,321.64 is: 304,998.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,772.04 : 326,782.80 = 202,321.64 : x
  2. Step 2: Convert to fraction form
    216,772.04/326,782.80 = 202,321.64/x
  3. Step 3: Cross multiply
    216,772.04x = 326,782.80 × 202,321.64
  4. Step 4: Simplify right side
    216,772.04x = 66,115,232,019.79
  5. Step 5: Solve for x
    x = 66,115,232,019.79/216,772.04
  6. Step 6: Final answer
    x = 304,998.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.