Home / 838,140.20-1,257,210.30-603,693.80

Finding the Fourth Proportional to 838,140.20, 1,257,210.30 and 603,693.80

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Solution

The fourth proportional to 838,140.20, 1,257,210.30 and 603,693.80 is: 905,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,140.20 : 1,257,210.30 = 603,693.80 : x
  2. Step 2: Convert to fraction form
    838,140.20/1,257,210.30 = 603,693.80/x
  3. Step 3: Cross multiply
    838,140.20x = 1,257,210.30 × 603,693.80
  4. Step 4: Simplify right side
    838,140.20x = 758,970,063,406.14
  5. Step 5: Solve for x
    x = 758,970,063,406.14/838,140.20
  6. Step 6: Final answer
    x = 905,540.70

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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.