Home / 927,928.54-1,280,631.27-520,099.66

Finding the Fourth Proportional to 927,928.54, 1,280,631.27 and 520,099.66

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Solution

The fourth proportional to 927,928.54, 1,280,631.27 and 520,099.66 is: 717,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,928.54 : 1,280,631.27 = 520,099.66 : x
  2. Step 2: Convert to fraction form
    927,928.54/1,280,631.27 = 520,099.66/x
  3. Step 3: Cross multiply
    927,928.54x = 1,280,631.27 × 520,099.66
  4. Step 4: Simplify right side
    927,928.54x = 666,055,888,112.37
  5. Step 5: Solve for x
    x = 666,055,888,112.37/927,928.54
  6. Step 6: Final answer
    x = 717,787.91

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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.