Home / 919,610.64-1,378,153.44-469,383.12

Finding the Fourth Proportional to 919,610.64, 1,378,153.44 and 469,383.12

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Solution

The fourth proportional to 919,610.64, 1,378,153.44 and 469,383.12 is: 703,430.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,610.64 : 1,378,153.44 = 469,383.12 : x
  2. Step 2: Convert to fraction form
    919,610.64/1,378,153.44 = 469,383.12/x
  3. Step 3: Cross multiply
    919,610.64x = 1,378,153.44 × 469,383.12
  4. Step 4: Simplify right side
    919,610.64x = 646,881,961,505.93
  5. Step 5: Solve for x
    x = 646,881,961,505.93/919,610.64
  6. Step 6: Final answer
    x = 703,430.27

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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.