Home / 851,918.20-1,276,322.10-519,105.40

Finding the Fourth Proportional to 851,918.20, 1,276,322.10 and 519,105.40

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Solution

The fourth proportional to 851,918.20, 1,276,322.10 and 519,105.40 is: 777,710.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,918.20 : 1,276,322.10 = 519,105.40 : x
  2. Step 2: Convert to fraction form
    851,918.20/1,276,322.10 = 519,105.40/x
  3. Step 3: Cross multiply
    851,918.20x = 1,276,322.10 × 519,105.40
  4. Step 4: Simplify right side
    851,918.20x = 662,545,694,249.34
  5. Step 5: Solve for x
    x = 662,545,694,249.34/851,918.20
  6. Step 6: Final answer
    x = 777,710.46

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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.