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Finding the Fourth Proportional to 358,853.64, 538,262.57 and 134,197.55

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Solution

The fourth proportional to 358,853.64, 538,262.57 and 134,197.55 is: 201,289.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,853.64 : 538,262.57 = 134,197.55 : x
  2. Step 2: Convert to fraction form
    358,853.64/538,262.57 = 134,197.55/x
  3. Step 3: Cross multiply
    358,853.64x = 538,262.57 × 134,197.55
  4. Step 4: Simplify right side
    358,853.64x = 72,233,518,150.70
  5. Step 5: Solve for x
    x = 72,233,518,150.70/358,853.64
  6. Step 6: Final answer
    x = 201,289.63

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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.