Home / 851,914.20-1,276,316.10-519,101.40

Finding the Fourth Proportional to 851,914.20, 1,276,316.10 and 519,101.40

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Solution

The fourth proportional to 851,914.20, 1,276,316.10 and 519,101.40 is: 777,704.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,914.20 : 1,276,316.10 = 519,101.40 : x
  2. Step 2: Convert to fraction form
    851,914.20/1,276,316.10 = 519,101.40/x
  3. Step 3: Cross multiply
    851,914.20x = 1,276,316.10 × 519,101.40
  4. Step 4: Simplify right side
    851,914.20x = 662,537,474,352.54
  5. Step 5: Solve for x
    x = 662,537,474,352.54/851,914.20
  6. Step 6: Final answer
    x = 777,704.46

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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.