Home / 933,785.19-1,288,589.54-520,300.60

Finding the Fourth Proportional to 933,785.19, 1,288,589.54 and 520,300.60

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Solution

The fourth proportional to 933,785.19, 1,288,589.54 and 520,300.60 is: 717,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,785.19 : 1,288,589.54 = 520,300.60 : x
  2. Step 2: Convert to fraction form
    933,785.19/1,288,589.54 = 520,300.60/x
  3. Step 3: Cross multiply
    933,785.19x = 1,288,589.54 × 520,300.60
  4. Step 4: Simplify right side
    933,785.19x = 670,453,904,372.78
  5. Step 5: Solve for x
    x = 670,453,904,372.78/933,785.19
  6. Step 6: Final answer
    x = 717,995.86

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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.