Home / 989,698.44-1,366,402.08-680,134.32

Finding the Fourth Proportional to 989,698.44, 1,366,402.08 and 680,134.32

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Solution

The fourth proportional to 989,698.44, 1,366,402.08 and 680,134.32 is: 939,010.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,698.44 : 1,366,402.08 = 680,134.32 : x
  2. Step 2: Convert to fraction form
    989,698.44/1,366,402.08 = 680,134.32/x
  3. Step 3: Cross multiply
    989,698.44x = 1,366,402.08 × 680,134.32
  4. Step 4: Simplify right side
    989,698.44x = 929,336,949,527.39
  5. Step 5: Solve for x
    x = 929,336,949,527.39/989,698.44
  6. Step 6: Final answer
    x = 939,010.22

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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.