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Finding the Fourth Proportional to 518,802.54, 715,941.09 and 292,448.04

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Solution

The fourth proportional to 518,802.54, 715,941.09 and 292,448.04 is: 403,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,802.54 : 715,941.09 = 292,448.04 : x
  2. Step 2: Convert to fraction form
    518,802.54/715,941.09 = 292,448.04/x
  3. Step 3: Cross multiply
    518,802.54x = 715,941.09 × 292,448.04
  4. Step 4: Simplify right side
    518,802.54x = 209,375,568,525.96
  5. Step 5: Solve for x
    x = 209,375,568,525.96/518,802.54
  6. Step 6: Final answer
    x = 403,574.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.