Home / 830,154.87-1,245,232.62-640,891.62

Finding the Fourth Proportional to 830,154.87, 1,245,232.62 and 640,891.62

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Solution

The fourth proportional to 830,154.87, 1,245,232.62 and 640,891.62 is: 961,337.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,154.87 : 1,245,232.62 = 640,891.62 : x
  2. Step 2: Convert to fraction form
    830,154.87/1,245,232.62 = 640,891.62/x
  3. Step 3: Cross multiply
    830,154.87x = 1,245,232.62 × 640,891.62
  4. Step 4: Simplify right side
    830,154.87x = 798,059,151,108.64
  5. Step 5: Solve for x
    x = 798,059,151,108.64/830,154.87
  6. Step 6: Final answer
    x = 961,337.67

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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.