Home / 932,135.60-1,399,240.20-512,231.60

Finding the Fourth Proportional to 932,135.60, 1,399,240.20 and 512,231.60

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Solution

The fourth proportional to 932,135.60, 1,399,240.20 and 512,231.60 is: 768,917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,135.60 : 1,399,240.20 = 512,231.60 : x
  2. Step 2: Convert to fraction form
    932,135.60/1,399,240.20 = 512,231.60/x
  3. Step 3: Cross multiply
    932,135.60x = 1,399,240.20 × 512,231.60
  4. Step 4: Simplify right side
    932,135.60x = 716,735,046,430.32
  5. Step 5: Solve for x
    x = 716,735,046,430.32/932,135.60
  6. Step 6: Final answer
    x = 768,917.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.