Home / 626,023.35-863,912.27-354,085.38

Finding the Fourth Proportional to 626,023.35, 863,912.27 and 354,085.38

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Solution

The fourth proportional to 626,023.35, 863,912.27 and 354,085.38 is: 488,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,023.35 : 863,912.27 = 354,085.38 : x
  2. Step 2: Convert to fraction form
    626,023.35/863,912.27 = 354,085.38/x
  3. Step 3: Cross multiply
    626,023.35x = 863,912.27 × 354,085.38
  4. Step 4: Simplify right side
    626,023.35x = 305,898,704,409.61
  5. Step 5: Solve for x
    x = 305,898,704,409.61/626,023.35
  6. Step 6: Final answer
    x = 488,637.85

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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.