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Finding the Fourth Proportional to 518,161.81, 776,295.47 and 375,654.16

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Solution

The fourth proportional to 518,161.81, 776,295.47 and 375,654.16 is: 562,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,161.81 : 776,295.47 = 375,654.16 : x
  2. Step 2: Convert to fraction form
    518,161.81/776,295.47 = 375,654.16/x
  3. Step 3: Cross multiply
    518,161.81x = 776,295.47 × 375,654.16
  4. Step 4: Simplify right side
    518,161.81x = 291,618,619,180.97
  5. Step 5: Solve for x
    x = 291,618,619,180.97/518,161.81
  6. Step 6: Final answer
    x = 562,794.51

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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.