Home / 620,972.58-931,820.37-261,117.42

Finding the Fourth Proportional to 620,972.58, 931,820.37 and 261,117.42

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Solution

The fourth proportional to 620,972.58, 931,820.37 and 261,117.42 is: 391,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,972.58 : 931,820.37 = 261,117.42 : x
  2. Step 2: Convert to fraction form
    620,972.58/931,820.37 = 261,117.42/x
  3. Step 3: Cross multiply
    620,972.58x = 931,820.37 × 261,117.42
  4. Step 4: Simplify right side
    620,972.58x = 243,314,530,917.85
  5. Step 5: Solve for x
    x = 243,314,530,917.85/620,972.58
  6. Step 6: Final answer
    x = 391,828.14

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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.