Home / 821,690.31-1,133,911.44-459,117.15

Finding the Fourth Proportional to 821,690.31, 1,133,911.44 and 459,117.15

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Solution

The fourth proportional to 821,690.31, 1,133,911.44 and 459,117.15 is: 633,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,690.31 : 1,133,911.44 = 459,117.15 : x
  2. Step 2: Convert to fraction form
    821,690.31/1,133,911.44 = 459,117.15/x
  3. Step 3: Cross multiply
    821,690.31x = 1,133,911.44 × 459,117.15
  4. Step 4: Simplify right side
    821,690.31x = 520,598,188,685.20
  5. Step 5: Solve for x
    x = 520,598,188,685.20/821,690.31
  6. Step 6: Final answer
    x = 633,569.83

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Double scale
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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.