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Finding the Fourth Proportional to 374,683.55, 517,064.18 and 213,545.39

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Solution

The fourth proportional to 374,683.55, 517,064.18 and 213,545.39 is: 294,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,683.55 : 517,064.18 = 213,545.39 : x
  2. Step 2: Convert to fraction form
    374,683.55/517,064.18 = 213,545.39/x
  3. Step 3: Cross multiply
    374,683.55x = 517,064.18 × 213,545.39
  4. Step 4: Simplify right side
    374,683.55x = 110,416,668,320.08
  5. Step 5: Solve for x
    x = 110,416,668,320.08/374,683.55
  6. Step 6: Final answer
    x = 294,693.13

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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.