Home / 931,693.62-1,285,724.85-518,227.60

Finding the Fourth Proportional to 931,693.62, 1,285,724.85 and 518,227.60

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Solution

The fourth proportional to 931,693.62, 1,285,724.85 and 518,227.60 is: 715,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,693.62 : 1,285,724.85 = 518,227.60 : x
  2. Step 2: Convert to fraction form
    931,693.62/1,285,724.85 = 518,227.60/x
  3. Step 3: Cross multiply
    931,693.62x = 1,285,724.85 × 518,227.60
  4. Step 4: Simplify right side
    931,693.62x = 666,298,103,275.86
  5. Step 5: Solve for x
    x = 666,298,103,275.86/931,693.62
  6. Step 6: Final answer
    x = 715,147.22

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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.