Home / 1,321,127.76-1,823,165.76-717,515.76

Finding the Fourth Proportional to 1,321,127.76, 1,823,165.76 and 717,515.76

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Solution

The fourth proportional to 1,321,127.76, 1,823,165.76 and 717,515.76 is: 990,176.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,127.76 : 1,823,165.76 = 717,515.76 : x
  2. Step 2: Convert to fraction form
    1,321,127.76/1,823,165.76 = 717,515.76/x
  3. Step 3: Cross multiply
    1,321,127.76x = 1,823,165.76 × 717,515.76
  4. Step 4: Simplify right side
    1,321,127.76x = 1,308,150,165,892.38
  5. Step 5: Solve for x
    x = 1,308,150,165,892.38/1,321,127.76
  6. Step 6: Final answer
    x = 990,176.88

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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.