Home / 685,212.40-1,024,902.60-614,645.20

Finding the Fourth Proportional to 685,212.40, 1,024,902.60 and 614,645.20

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Solution

The fourth proportional to 685,212.40, 1,024,902.60 and 614,645.20 is: 919,352.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,212.40 : 1,024,902.60 = 614,645.20 : x
  2. Step 2: Convert to fraction form
    685,212.40/1,024,902.60 = 614,645.20/x
  3. Step 3: Cross multiply
    685,212.40x = 1,024,902.60 × 614,645.20
  4. Step 4: Simplify right side
    685,212.40x = 629,951,463,557.52
  5. Step 5: Solve for x
    x = 629,951,463,557.52/685,212.40
  6. Step 6: Final answer
    x = 919,352.11

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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.