Home / 929,422.28-1,281,578.16-642,444.14

Finding the Fourth Proportional to 929,422.28, 1,281,578.16 and 642,444.14

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Solution

The fourth proportional to 929,422.28, 1,281,578.16 and 642,444.14 is: 885,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,422.28 : 1,281,578.16 = 642,444.14 : x
  2. Step 2: Convert to fraction form
    929,422.28/1,281,578.16 = 642,444.14/x
  3. Step 3: Cross multiply
    929,422.28x = 1,281,578.16 × 642,444.14
  4. Step 4: Simplify right side
    929,422.28x = 823,342,378,843.98
  5. Step 5: Solve for x
    x = 823,342,378,843.98/929,422.28
  6. Step 6: Final answer
    x = 885,864.69

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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.