Home / 646,943.87-892,786.20-375,173.12

Finding the Fourth Proportional to 646,943.87, 892,786.20 and 375,173.12

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Solution

The fourth proportional to 646,943.87, 892,786.20 and 375,173.12 is: 517,741.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,943.87 : 892,786.20 = 375,173.12 : x
  2. Step 2: Convert to fraction form
    646,943.87/892,786.20 = 375,173.12/x
  3. Step 3: Cross multiply
    646,943.87x = 892,786.20 × 375,173.12
  4. Step 4: Simplify right side
    646,943.87x = 334,949,384,972.01
  5. Step 5: Solve for x
    x = 334,949,384,972.01/646,943.87
  6. Step 6: Final answer
    x = 517,741.03

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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.