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Finding the Fourth Proportional to 643,344.86, 965,025.50 and 170,026.13

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Solution

The fourth proportional to 643,344.86, 965,025.50 and 170,026.13 is: 255,041.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,344.86 : 965,025.50 = 170,026.13 : x
  2. Step 2: Convert to fraction form
    643,344.86/965,025.50 = 170,026.13/x
  3. Step 3: Cross multiply
    643,344.86x = 965,025.50 × 170,026.13
  4. Step 4: Simplify right side
    643,344.86x = 164,079,545,441.06
  5. Step 5: Solve for x
    x = 164,079,545,441.06/643,344.86
  6. Step 6: Final answer
    x = 255,041.36

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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.