Home / 545,976.72-819,127.64-394,516.08

Finding the Fourth Proportional to 545,976.72, 819,127.64 and 394,516.08

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Solution

The fourth proportional to 545,976.72, 819,127.64 and 394,516.08 is: 591,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,976.72 : 819,127.64 = 394,516.08 : x
  2. Step 2: Convert to fraction form
    545,976.72/819,127.64 = 394,516.08/x
  3. Step 3: Cross multiply
    545,976.72x = 819,127.64 × 394,516.08
  4. Step 4: Simplify right side
    545,976.72x = 323,159,025,552.45
  5. Step 5: Solve for x
    x = 323,159,025,552.45/545,976.72
  6. Step 6: Final answer
    x = 591,891.58

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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.