Home / 626,778.43-864,954.20-340,298.55

Finding the Fourth Proportional to 626,778.43, 864,954.20 and 340,298.55

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Solution

The fourth proportional to 626,778.43, 864,954.20 and 340,298.55 is: 469,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,778.43 : 864,954.20 = 340,298.55 : x
  2. Step 2: Convert to fraction form
    626,778.43/864,954.20 = 340,298.55/x
  3. Step 3: Cross multiply
    626,778.43x = 864,954.20 × 340,298.55
  4. Step 4: Simplify right side
    626,778.43x = 294,342,660,927.16
  5. Step 5: Solve for x
    x = 294,342,660,927.16/626,778.43
  6. Step 6: Final answer
    x = 469,611.98

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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.