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Finding the Fourth Proportional to 265,319.04, 397,998.16 and 75,795.45

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Solution

The fourth proportional to 265,319.04, 397,998.16 and 75,795.45 is: 113,698.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,319.04 : 397,998.16 = 75,795.45 : x
  2. Step 2: Convert to fraction form
    265,319.04/397,998.16 = 75,795.45/x
  3. Step 3: Cross multiply
    265,319.04x = 397,998.16 × 75,795.45
  4. Step 4: Simplify right side
    265,319.04x = 30,166,447,954.39
  5. Step 5: Solve for x
    x = 30,166,447,954.39/265,319.04
  6. Step 6: Final answer
    x = 113,698.77

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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.