Home / 872,258.94-1,203,540.93-509,612.76

Finding the Fourth Proportional to 872,258.94, 1,203,540.93 and 509,612.76

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Solution

The fourth proportional to 872,258.94, 1,203,540.93 and 509,612.76 is: 703,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,258.94 : 1,203,540.93 = 509,612.76 : x
  2. Step 2: Convert to fraction form
    872,258.94/1,203,540.93 = 509,612.76/x
  3. Step 3: Cross multiply
    872,258.94x = 1,203,540.93 × 509,612.76
  4. Step 4: Simplify right side
    872,258.94x = 613,339,815,110.27
  5. Step 5: Solve for x
    x = 613,339,815,110.27/872,258.94
  6. Step 6: Final answer
    x = 703,162.54

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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.