Home / 919,663.14-1,379,553.03-288,601.86

Finding the Fourth Proportional to 919,663.14, 1,379,553.03 and 288,601.86

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Solution

The fourth proportional to 919,663.14, 1,379,553.03 and 288,601.86 is: 432,921.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,663.14 : 1,379,553.03 = 288,601.86 : x
  2. Step 2: Convert to fraction form
    919,663.14/1,379,553.03 = 288,601.86/x
  3. Step 3: Cross multiply
    919,663.14x = 1,379,553.03 × 288,601.86
  4. Step 4: Simplify right side
    919,663.14x = 398,141,570,426.64
  5. Step 5: Solve for x
    x = 398,141,570,426.64/919,663.14
  6. Step 6: Final answer
    x = 432,921.09

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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.