Home / 756,014.70-1,134,022.05-543,438.30

Finding the Fourth Proportional to 756,014.70, 1,134,022.05 and 543,438.30

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Solution

The fourth proportional to 756,014.70, 1,134,022.05 and 543,438.30 is: 815,157.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,014.70 : 1,134,022.05 = 543,438.30 : x
  2. Step 2: Convert to fraction form
    756,014.70/1,134,022.05 = 543,438.30/x
  3. Step 3: Cross multiply
    756,014.70x = 1,134,022.05 × 543,438.30
  4. Step 4: Simplify right side
    756,014.70x = 616,271,015,014.52
  5. Step 5: Solve for x
    x = 616,271,015,014.52/756,014.70
  6. Step 6: Final answer
    x = 815,157.45

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Half scale
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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.