Home / 883,654.32-1,219,231.26-521,049.72

Finding the Fourth Proportional to 883,654.32, 1,219,231.26 and 521,049.72

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Solution

The fourth proportional to 883,654.32, 1,219,231.26 and 521,049.72 is: 718,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,654.32 : 1,219,231.26 = 521,049.72 : x
  2. Step 2: Convert to fraction form
    883,654.32/1,219,231.26 = 521,049.72/x
  3. Step 3: Cross multiply
    883,654.32x = 1,219,231.26 × 521,049.72
  4. Step 4: Simplify right side
    883,654.32x = 635,280,106,638.25
  5. Step 5: Solve for x
    x = 635,280,106,638.25/883,654.32
  6. Step 6: Final answer
    x = 718,923.78

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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.