Home / 642,623.76-963,930.24-193,342.32

Finding the Fourth Proportional to 642,623.76, 963,930.24 and 193,342.32

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Solution

The fourth proportional to 642,623.76, 963,930.24 and 193,342.32 is: 290,011.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,623.76 : 963,930.24 = 193,342.32 : x
  2. Step 2: Convert to fraction form
    642,623.76/963,930.24 = 193,342.32/x
  3. Step 3: Cross multiply
    642,623.76x = 963,930.24 × 193,342.32
  4. Step 4: Simplify right side
    642,623.76x = 186,368,508,919.76
  5. Step 5: Solve for x
    x = 186,368,508,919.76/642,623.76
  6. Step 6: Final answer
    x = 290,011.86

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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.