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Finding the Fourth Proportional to 562,766.18, 776,691.24 and 320,993.24

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Solution

The fourth proportional to 562,766.18, 776,691.24 and 320,993.24 is: 443,012.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,766.18 : 776,691.24 = 320,993.24 : x
  2. Step 2: Convert to fraction form
    562,766.18/776,691.24 = 320,993.24/x
  3. Step 3: Cross multiply
    562,766.18x = 776,691.24 × 320,993.24
  4. Step 4: Simplify right side
    562,766.18x = 249,312,637,607.22
  5. Step 5: Solve for x
    x = 249,312,637,607.22/562,766.18
  6. Step 6: Final answer
    x = 443,012.83

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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.