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Finding the Fourth Proportional to 310,958.46, 429,117.48 and 174,992.40

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Solution

The fourth proportional to 310,958.46, 429,117.48 and 174,992.40 is: 241,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,958.46 : 429,117.48 = 174,992.40 : x
  2. Step 2: Convert to fraction form
    310,958.46/429,117.48 = 174,992.40/x
  3. Step 3: Cross multiply
    310,958.46x = 429,117.48 × 174,992.40
  4. Step 4: Simplify right side
    310,958.46x = 75,092,297,707.15
  5. Step 5: Solve for x
    x = 75,092,297,707.15/310,958.46
  6. Step 6: Final answer
    x = 241,486.59

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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.