Home / 1,768,122.10-2,652,183.15-438,426.10

Finding the Fourth Proportional to 1,768,122.10, 2,652,183.15 and 438,426.10

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Solution

The fourth proportional to 1,768,122.10, 2,652,183.15 and 438,426.10 is: 657,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,768,122.10 : 2,652,183.15 = 438,426.10 : x
  2. Step 2: Convert to fraction form
    1,768,122.10/2,652,183.15 = 438,426.10/x
  3. Step 3: Cross multiply
    1,768,122.10x = 2,652,183.15 × 438,426.10
  4. Step 4: Simplify right side
    1,768,122.10x = 1,162,786,314,940.21
  5. Step 5: Solve for x
    x = 1,162,786,314,940.21/1,768,122.10
  6. Step 6: Final answer
    x = 657,639.15

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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.