Home / 451,585.20-623,255.70-288,311.46

Finding the Fourth Proportional to 451,585.20, 623,255.70 and 288,311.46

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Solution

The fourth proportional to 451,585.20, 623,255.70 and 288,311.46 is: 397,913.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,585.20 : 623,255.70 = 288,311.46 : x
  2. Step 2: Convert to fraction form
    451,585.20/623,255.70 = 288,311.46/x
  3. Step 3: Cross multiply
    451,585.20x = 623,255.70 × 288,311.46
  4. Step 4: Simplify right side
    451,585.20x = 179,691,760,820.32
  5. Step 5: Solve for x
    x = 179,691,760,820.32/451,585.20
  6. Step 6: Final answer
    x = 397,913.31

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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.