Home / 927,421.23-1,389,320.76-639,181.32

Finding the Fourth Proportional to 927,421.23, 1,389,320.76 and 639,181.32

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Solution

The fourth proportional to 927,421.23, 1,389,320.76 and 639,181.32 is: 957,523.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,421.23 : 1,389,320.76 = 639,181.32 : x
  2. Step 2: Convert to fraction form
    927,421.23/1,389,320.76 = 639,181.32/x
  3. Step 3: Cross multiply
    927,421.23x = 1,389,320.76 × 639,181.32
  4. Step 4: Simplify right side
    927,421.23x = 888,027,877,280.20
  5. Step 5: Solve for x
    x = 888,027,877,280.20/927,421.23
  6. Step 6: Final answer
    x = 957,523.78

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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.