Home / 261,343.40-391,968.33-69,219.14

Finding the Fourth Proportional to 261,343.40, 391,968.33 and 69,219.14

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Solution

The fourth proportional to 261,343.40, 391,968.33 and 69,219.14 is: 103,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,343.40 : 391,968.33 = 69,219.14 : x
  2. Step 2: Convert to fraction form
    261,343.40/391,968.33 = 69,219.14/x
  3. Step 3: Cross multiply
    261,343.40x = 391,968.33 × 69,219.14
  4. Step 4: Simplify right side
    261,343.40x = 27,131,708,749.99
  5. Step 5: Solve for x
    x = 27,131,708,749.99/261,343.40
  6. Step 6: Final answer
    x = 103,816.32

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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.