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Finding the Fourth Proportional to 459,423.73, 633,949.63 and 255,423.43

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Solution

The fourth proportional to 459,423.73, 633,949.63 and 255,423.43 is: 352,453.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,423.73 : 633,949.63 = 255,423.43 : x
  2. Step 2: Convert to fraction form
    459,423.73/633,949.63 = 255,423.43/x
  3. Step 3: Cross multiply
    459,423.73x = 633,949.63 × 255,423.43
  4. Step 4: Simplify right side
    459,423.73x = 161,925,588,941.83
  5. Step 5: Solve for x
    x = 161,925,588,941.83/459,423.73
  6. Step 6: Final answer
    x = 352,453.69

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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.