Home / 621,722.75-857,977.18-346,074.61

Finding the Fourth Proportional to 621,722.75, 857,977.18 and 346,074.61

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Solution

The fourth proportional to 621,722.75, 857,977.18 and 346,074.61 is: 477,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,722.75 : 857,977.18 = 346,074.61 : x
  2. Step 2: Convert to fraction form
    621,722.75/857,977.18 = 346,074.61/x
  3. Step 3: Cross multiply
    621,722.75x = 857,977.18 × 346,074.61
  4. Step 4: Simplify right side
    621,722.75x = 296,924,114,947.27
  5. Step 5: Solve for x
    x = 296,924,114,947.27/621,722.75
  6. Step 6: Final answer
    x = 477,582.84

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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.