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Finding the Fourth Proportional to 263,428.60, 363,433.62 and 167,913.40

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Solution

The fourth proportional to 263,428.60, 363,433.62 and 167,913.40 is: 231,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,428.60 : 363,433.62 = 167,913.40 : x
  2. Step 2: Convert to fraction form
    263,428.60/363,433.62 = 167,913.40/x
  3. Step 3: Cross multiply
    263,428.60x = 363,433.62 × 167,913.40
  4. Step 4: Simplify right side
    263,428.60x = 61,025,374,808.51
  5. Step 5: Solve for x
    x = 61,025,374,808.51/263,428.60
  6. Step 6: Final answer
    x = 231,658.12

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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.