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Finding the Fourth Proportional to 516,665.40, 775,054.62 and 175,355.22

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Solution

The fourth proportional to 516,665.40, 775,054.62 and 175,355.22 is: 263,052.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,665.40 : 775,054.62 = 175,355.22 : x
  2. Step 2: Convert to fraction form
    516,665.40/775,054.62 = 175,355.22/x
  3. Step 3: Cross multiply
    516,665.40x = 775,054.62 × 175,355.22
  4. Step 4: Simplify right side
    516,665.40x = 135,909,873,402.12
  5. Step 5: Solve for x
    x = 135,909,873,402.12/516,665.40
  6. Step 6: Final answer
    x = 263,052.01

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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.