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Finding the Fourth Proportional to 308,064.60, 461,440.80 and 249,015.60

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Solution

The fourth proportional to 308,064.60, 461,440.80 and 249,015.60 is: 372,993.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,064.60 : 461,440.80 = 249,015.60 : x
  2. Step 2: Convert to fraction form
    308,064.60/461,440.80 = 249,015.60/x
  3. Step 3: Cross multiply
    308,064.60x = 461,440.80 × 249,015.60
  4. Step 4: Simplify right side
    308,064.60x = 114,905,957,676.48
  5. Step 5: Solve for x
    x = 114,905,957,676.48/308,064.60
  6. Step 6: Final answer
    x = 372,993.06

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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.