Home / 689,462.16-1,034,193.21-216,185.64

Finding the Fourth Proportional to 689,462.16, 1,034,193.21 and 216,185.64

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Solution

The fourth proportional to 689,462.16, 1,034,193.21 and 216,185.64 is: 324,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,462.16 : 1,034,193.21 = 216,185.64 : x
  2. Step 2: Convert to fraction form
    689,462.16/1,034,193.21 = 216,185.64/x
  3. Step 3: Cross multiply
    689,462.16x = 1,034,193.21 × 216,185.64
  4. Step 4: Simplify right side
    689,462.16x = 223,577,720,987.50
  5. Step 5: Solve for x
    x = 223,577,720,987.50/689,462.16
  6. Step 6: Final answer
    x = 324,278.45

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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.