Home / 691,145.37-953,785.08-385,241.19

Finding the Fourth Proportional to 691,145.37, 953,785.08 and 385,241.19

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Solution

The fourth proportional to 691,145.37, 953,785.08 and 385,241.19 is: 531,635.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,145.37 : 953,785.08 = 385,241.19 : x
  2. Step 2: Convert to fraction form
    691,145.37/953,785.08 = 385,241.19/x
  3. Step 3: Cross multiply
    691,145.37x = 953,785.08 × 385,241.19
  4. Step 4: Simplify right side
    691,145.37x = 367,437,299,223.45
  5. Step 5: Solve for x
    x = 367,437,299,223.45/691,145.37
  6. Step 6: Final answer
    x = 531,635.33

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.