Home / 851,916.20-1,276,319.10-519,103.40

Finding the Fourth Proportional to 851,916.20, 1,276,319.10 and 519,103.40

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Solution

The fourth proportional to 851,916.20, 1,276,319.10 and 519,103.40 is: 777,707.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,916.20 : 1,276,319.10 = 519,103.40 : x
  2. Step 2: Convert to fraction form
    851,916.20/1,276,319.10 = 519,103.40/x
  3. Step 3: Cross multiply
    851,916.20x = 1,276,319.10 × 519,103.40
  4. Step 4: Simplify right side
    851,916.20x = 662,541,584,294.94
  5. Step 5: Solve for x
    x = 662,541,584,294.94/851,916.20
  6. Step 6: Final answer
    x = 777,707.46

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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.