Home / 691,090.16-953,733.48-385,166.72

Finding the Fourth Proportional to 691,090.16, 953,733.48 and 385,166.72

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Solution

The fourth proportional to 691,090.16, 953,733.48 and 385,166.72 is: 531,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,090.16 : 953,733.48 = 385,166.72 : x
  2. Step 2: Convert to fraction form
    691,090.16/953,733.48 = 385,166.72/x
  3. Step 3: Cross multiply
    691,090.16x = 953,733.48 × 385,166.72
  4. Step 4: Simplify right side
    691,090.16x = 367,346,396,245.79
  5. Step 5: Solve for x
    x = 367,346,396,245.79/691,090.16
  6. Step 6: Final answer
    x = 531,546.27

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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.