Home / 813,353.64-1,122,436.32-450,785.48

Finding the Fourth Proportional to 813,353.64, 1,122,436.32 and 450,785.48

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Solution

The fourth proportional to 813,353.64, 1,122,436.32 and 450,785.48 is: 622,088.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,353.64 : 1,122,436.32 = 450,785.48 : x
  2. Step 2: Convert to fraction form
    813,353.64/1,122,436.32 = 450,785.48/x
  3. Step 3: Cross multiply
    813,353.64x = 1,122,436.32 × 450,785.48
  4. Step 4: Simplify right side
    813,353.64x = 505,977,995,280.63
  5. Step 5: Solve for x
    x = 505,977,995,280.63/813,353.64
  6. Step 6: Final answer
    x = 622,088.56

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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.