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Finding the Fourth Proportional to 358,963.88, 538,695.66 and 148,602.92

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Solution

The fourth proportional to 358,963.88, 538,695.66 and 148,602.92 is: 223,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,963.88 : 538,695.66 = 148,602.92 : x
  2. Step 2: Convert to fraction form
    358,963.88/538,695.66 = 148,602.92/x
  3. Step 3: Cross multiply
    358,963.88x = 538,695.66 × 148,602.92
  4. Step 4: Simplify right side
    358,963.88x = 80,051,748,067.33
  5. Step 5: Solve for x
    x = 80,051,748,067.33/358,963.88
  6. Step 6: Final answer
    x = 223,007.81

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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.