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Finding the Fourth Proportional to 352,156.86, 485,973.63 and 191,011.50

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Solution

The fourth proportional to 352,156.86, 485,973.63 and 191,011.50 is: 263,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,156.86 : 485,973.63 = 191,011.50 : x
  2. Step 2: Convert to fraction form
    352,156.86/485,973.63 = 191,011.50/x
  3. Step 3: Cross multiply
    352,156.86x = 485,973.63 × 191,011.50
  4. Step 4: Simplify right side
    352,156.86x = 92,826,552,026.75
  5. Step 5: Solve for x
    x = 92,826,552,026.75/352,156.86
  6. Step 6: Final answer
    x = 263,594.33

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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.