Home / 642,976.36-964,500.99-193,759.27

Finding the Fourth Proportional to 642,976.36, 964,500.99 and 193,759.27

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Solution

The fourth proportional to 642,976.36, 964,500.99 and 193,759.27 is: 290,649.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,976.36 : 964,500.99 = 193,759.27 : x
  2. Step 2: Convert to fraction form
    642,976.36/964,500.99 = 193,759.27/x
  3. Step 3: Cross multiply
    642,976.36x = 964,500.99 × 193,759.27
  4. Step 4: Simplify right side
    642,976.36x = 186,881,004,598.83
  5. Step 5: Solve for x
    x = 186,881,004,598.83/642,976.36
  6. Step 6: Final answer
    x = 290,649.89

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Double scale
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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.