Home / 1,993,095-2,989,642.52-646,384.16

Finding the Fourth Proportional to 1,993,095, 2,989,642.52 and 646,384.16

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Solution

The fourth proportional to 1,993,095, 2,989,642.52 and 646,384.16 is: 969,576.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,095 : 2,989,642.52 = 646,384.16 : x
  2. Step 2: Convert to fraction form
    1,993,095/2,989,642.52 = 646,384.16/x
  3. Step 3: Cross multiply
    1,993,095x = 2,989,642.52 × 646,384.16
  4. Step 4: Simplify right side
    1,993,095x = 1,932,457,568,990.48
  5. Step 5: Solve for x
    x = 1,932,457,568,990.48/1,993,095
  6. Step 6: Final answer
    x = 969,576.25

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Double scale
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Similar ratio
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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.