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Finding the Fourth Proportional to 459,601.92, 634,268.69 and 278,211.23

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Solution

The fourth proportional to 459,601.92, 634,268.69 and 278,211.23 is: 383,942.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,601.92 : 634,268.69 = 278,211.23 : x
  2. Step 2: Convert to fraction form
    459,601.92/634,268.69 = 278,211.23/x
  3. Step 3: Cross multiply
    459,601.92x = 634,268.69 × 278,211.23
  4. Step 4: Simplify right side
    459,601.92x = 176,460,672,395.39
  5. Step 5: Solve for x
    x = 176,460,672,395.39/459,601.92
  6. Step 6: Final answer
    x = 383,942.42

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1.5x scale

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.