Home / 935,640.50-1,291,182.98-505,919.60

Finding the Fourth Proportional to 935,640.50, 1,291,182.98 and 505,919.60

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Solution

The fourth proportional to 935,640.50, 1,291,182.98 and 505,919.60 is: 698,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,640.50 : 1,291,182.98 = 505,919.60 : x
  2. Step 2: Convert to fraction form
    935,640.50/1,291,182.98 = 505,919.60/x
  3. Step 3: Cross multiply
    935,640.50x = 1,291,182.98 × 505,919.60
  4. Step 4: Simplify right side
    935,640.50x = 653,234,776,768.41
  5. Step 5: Solve for x
    x = 653,234,776,768.41/935,640.50
  6. Step 6: Final answer
    x = 698,168.56

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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.