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Finding the Fourth Proportional to 445,527.54, 666,694.86 and 385,762.14

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Solution

The fourth proportional to 445,527.54, 666,694.86 and 385,762.14 is: 577,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,527.54 : 666,694.86 = 385,762.14 : x
  2. Step 2: Convert to fraction form
    445,527.54/666,694.86 = 385,762.14/x
  3. Step 3: Cross multiply
    445,527.54x = 666,694.86 × 385,762.14
  4. Step 4: Simplify right side
    445,527.54x = 257,185,635,920.60
  5. Step 5: Solve for x
    x = 257,185,635,920.60/445,527.54
  6. Step 6: Final answer
    x = 577,260.92

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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.