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Finding the Fourth Proportional to 617,352.12, 852,078.96 and 375,712.38

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Solution

The fourth proportional to 617,352.12, 852,078.96 and 375,712.38 is: 518,564.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,352.12 : 852,078.96 = 375,712.38 : x
  2. Step 2: Convert to fraction form
    617,352.12/852,078.96 = 375,712.38/x
  3. Step 3: Cross multiply
    617,352.12x = 852,078.96 × 375,712.38
  4. Step 4: Simplify right side
    617,352.12x = 320,136,614,009.53
  5. Step 5: Solve for x
    x = 320,136,614,009.53/617,352.12
  6. Step 6: Final answer
    x = 518,564.05

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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.