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Finding the Fourth Proportional to 354,350.40, 531,525.60 and 313,016.10

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Solution

The fourth proportional to 354,350.40, 531,525.60 and 313,016.10 is: 469,524.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,350.40 : 531,525.60 = 313,016.10 : x
  2. Step 2: Convert to fraction form
    354,350.40/531,525.60 = 313,016.10/x
  3. Step 3: Cross multiply
    354,350.40x = 531,525.60 × 313,016.10
  4. Step 4: Simplify right side
    354,350.40x = 166,376,070,362.16
  5. Step 5: Solve for x
    x = 166,376,070,362.16/354,350.40
  6. Step 6: Final answer
    x = 469,524.15

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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.