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Finding the Fourth Proportional to 545,169.69, 817,787.34 and 171,192.69

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Solution

The fourth proportional to 545,169.69, 817,787.34 and 171,192.69 is: 256,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,169.69 : 817,787.34 = 171,192.69 : x
  2. Step 2: Convert to fraction form
    545,169.69/817,787.34 = 171,192.69/x
  3. Step 3: Cross multiply
    545,169.69x = 817,787.34 × 171,192.69
  4. Step 4: Simplify right side
    545,169.69x = 139,999,214,582.55
  5. Step 5: Solve for x
    x = 139,999,214,582.55/545,169.69
  6. Step 6: Final answer
    x = 256,799.34

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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.