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Finding the Fourth Proportional to 357,618.54, 493,389.51 and 228,632.52

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Solution

The fourth proportional to 357,618.54, 493,389.51 and 228,632.52 is: 315,433.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,618.54 : 493,389.51 = 228,632.52 : x
  2. Step 2: Convert to fraction form
    357,618.54/493,389.51 = 228,632.52/x
  3. Step 3: Cross multiply
    357,618.54x = 493,389.51 × 228,632.52
  4. Step 4: Simplify right side
    357,618.54x = 112,804,887,012.87
  5. Step 5: Solve for x
    x = 112,804,887,012.87/357,618.54
  6. Step 6: Final answer
    x = 315,433.55

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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.