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Finding the Fourth Proportional to 518,727.38, 716,434.27 and 348,666.26

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Solution

The fourth proportional to 518,727.38, 716,434.27 and 348,666.26 is: 481,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,727.38 : 716,434.27 = 348,666.26 : x
  2. Step 2: Convert to fraction form
    518,727.38/716,434.27 = 348,666.26/x
  3. Step 3: Cross multiply
    518,727.38x = 716,434.27 × 348,666.26
  4. Step 4: Simplify right side
    518,727.38x = 249,796,453,002.89
  5. Step 5: Solve for x
    x = 249,796,453,002.89/518,727.38
  6. Step 6: Final answer
    x = 481,556.33

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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.