Home / 642,299.63-963,412.38-193,010.85

Finding the Fourth Proportional to 642,299.63, 963,412.38 and 193,010.85

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Solution

The fourth proportional to 642,299.63, 963,412.38 and 193,010.85 is: 289,505.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,299.63 : 963,412.38 = 193,010.85 : x
  2. Step 2: Convert to fraction form
    642,299.63/963,412.38 = 193,010.85/x
  3. Step 3: Cross multiply
    642,299.63x = 963,412.38 × 193,010.85
  4. Step 4: Simplify right side
    642,299.63x = 185,949,042,364.32
  5. Step 5: Solve for x
    x = 185,949,042,364.32/642,299.63
  6. Step 6: Final answer
    x = 289,505.14

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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.