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Finding the Fourth Proportional to 515,388.24, 773,528.76 and 357,727.68

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Solution

The fourth proportional to 515,388.24, 773,528.76 and 357,727.68 is: 536,901.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,388.24 : 773,528.76 = 357,727.68 : x
  2. Step 2: Convert to fraction form
    515,388.24/773,528.76 = 357,727.68/x
  3. Step 3: Cross multiply
    515,388.24x = 773,528.76 × 357,727.68
  4. Step 4: Simplify right side
    515,388.24x = 276,712,648,728.08
  5. Step 5: Solve for x
    x = 276,712,648,728.08/515,388.24
  6. Step 6: Final answer
    x = 536,901.36

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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.