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Finding the Fourth Proportional to 402,382.48, 555,079.60 and 273,327.60

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Solution

The fourth proportional to 402,382.48, 555,079.60 and 273,327.60 is: 377,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,382.48 : 555,079.60 = 273,327.60 : x
  2. Step 2: Convert to fraction form
    402,382.48/555,079.60 = 273,327.60/x
  3. Step 3: Cross multiply
    402,382.48x = 555,079.60 × 273,327.60
  4. Step 4: Simplify right side
    402,382.48x = 151,718,574,876.96
  5. Step 5: Solve for x
    x = 151,718,574,876.96/402,382.48
  6. Step 6: Final answer
    x = 377,050.65

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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.