Home / 1,993,089-2,989,633.50-646,378.14

Finding the Fourth Proportional to 1,993,089, 2,989,633.50 and 646,378.14

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Solution

The fourth proportional to 1,993,089, 2,989,633.50 and 646,378.14 is: 969,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,089 : 2,989,633.50 = 646,378.14 : x
  2. Step 2: Convert to fraction form
    1,993,089/2,989,633.50 = 646,378.14/x
  3. Step 3: Cross multiply
    1,993,089x = 2,989,633.50 × 646,378.14
  4. Step 4: Simplify right side
    1,993,089x = 1,932,433,741,011.69
  5. Step 5: Solve for x
    x = 1,932,433,741,011.69/1,993,089
  6. Step 6: Final answer
    x = 969,567.21

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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.