Home / 860,200.40-1,289,134.20-575,080.40

Finding the Fourth Proportional to 860,200.40, 1,289,134.20 and 575,080.40

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Solution

The fourth proportional to 860,200.40, 1,289,134.20 and 575,080.40 is: 861,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,200.40 : 1,289,134.20 = 575,080.40 : x
  2. Step 2: Convert to fraction form
    860,200.40/1,289,134.20 = 575,080.40/x
  3. Step 3: Cross multiply
    860,200.40x = 1,289,134.20 × 575,080.40
  4. Step 4: Simplify right side
    860,200.40x = 741,355,811,389.68
  5. Step 5: Solve for x
    x = 741,355,811,389.68/860,200.40
  6. Step 6: Final answer
    x = 861,840.81

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Double scale
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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.