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Finding the Fourth Proportional to 355,062.09, 532,409.51 and 130,364.85

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Solution

The fourth proportional to 355,062.09, 532,409.51 and 130,364.85 is: 195,479.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,062.09 : 532,409.51 = 130,364.85 : x
  2. Step 2: Convert to fraction form
    355,062.09/532,409.51 = 130,364.85/x
  3. Step 3: Cross multiply
    355,062.09x = 532,409.51 × 130,364.85
  4. Step 4: Simplify right side
    355,062.09x = 69,407,485,257.90
  5. Step 5: Solve for x
    x = 69,407,485,257.90/355,062.09
  6. Step 6: Final answer
    x = 195,479.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.