Home / 678,533.58-936,377.18-372,629.69

Finding the Fourth Proportional to 678,533.58, 936,377.18 and 372,629.69

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Solution

The fourth proportional to 678,533.58, 936,377.18 and 372,629.69 is: 514,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,533.58 : 936,377.18 = 372,629.69 : x
  2. Step 2: Convert to fraction form
    678,533.58/936,377.18 = 372,629.69/x
  3. Step 3: Cross multiply
    678,533.58x = 936,377.18 × 372,629.69
  4. Step 4: Simplify right side
    678,533.58x = 348,921,931,761.44
  5. Step 5: Solve for x
    x = 348,921,931,761.44/678,533.58
  6. Step 6: Final answer
    x = 514,229.42

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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.