Home / 968,145.44-1,334,640.10-640,910.12

Finding the Fourth Proportional to 968,145.44, 1,334,640.10 and 640,910.12

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Solution

The fourth proportional to 968,145.44, 1,334,640.10 and 640,910.12 is: 883,528.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,145.44 : 1,334,640.10 = 640,910.12 : x
  2. Step 2: Convert to fraction form
    968,145.44/1,334,640.10 = 640,910.12/x
  3. Step 3: Cross multiply
    968,145.44x = 1,334,640.10 × 640,910.12
  4. Step 4: Simplify right side
    968,145.44x = 855,384,346,647.81
  5. Step 5: Solve for x
    x = 855,384,346,647.81/968,145.44
  6. Step 6: Final answer
    x = 883,528.77

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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.