Home / 891,630.87-1,230,450.42-509,665.83

Finding the Fourth Proportional to 891,630.87, 1,230,450.42 and 509,665.83

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Solution

The fourth proportional to 891,630.87, 1,230,450.42 and 509,665.83 is: 703,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,630.87 : 1,230,450.42 = 509,665.83 : x
  2. Step 2: Convert to fraction form
    891,630.87/1,230,450.42 = 509,665.83/x
  3. Step 3: Cross multiply
    891,630.87x = 1,230,450.42 × 509,665.83
  4. Step 4: Simplify right side
    891,630.87x = 627,118,534,583.15
  5. Step 5: Solve for x
    x = 627,118,534,583.15/891,630.87
  6. Step 6: Final answer
    x = 703,338.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.