Home / 719,285.54-992,543.37-396,974.82

Finding the Fourth Proportional to 719,285.54, 992,543.37 and 396,974.82

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Solution

The fourth proportional to 719,285.54, 992,543.37 and 396,974.82 is: 547,786.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,285.54 : 992,543.37 = 396,974.82 : x
  2. Step 2: Convert to fraction form
    719,285.54/992,543.37 = 396,974.82/x
  3. Step 3: Cross multiply
    719,285.54x = 992,543.37 × 396,974.82
  4. Step 4: Simplify right side
    719,285.54x = 394,014,725,647.94
  5. Step 5: Solve for x
    x = 394,014,725,647.94/719,285.54
  6. Step 6: Final answer
    x = 547,786.25

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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.