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Finding the Fourth Proportional to 355,064.80, 532,143.60 and 144,464.80

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Solution

The fourth proportional to 355,064.80, 532,143.60 and 144,464.80 is: 216,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,064.80 : 532,143.60 = 144,464.80 : x
  2. Step 2: Convert to fraction form
    355,064.80/532,143.60 = 144,464.80/x
  3. Step 3: Cross multiply
    355,064.80x = 532,143.60 × 144,464.80
  4. Step 4: Simplify right side
    355,064.80x = 76,876,018,745.28
  5. Step 5: Solve for x
    x = 76,876,018,745.28/355,064.80
  6. Step 6: Final answer
    x = 216,512.64

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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.