Home / 609,631.60-914,447.40-385,682.80

Finding the Fourth Proportional to 609,631.60, 914,447.40 and 385,682.80

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Solution

The fourth proportional to 609,631.60, 914,447.40 and 385,682.80 is: 578,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,631.60 : 914,447.40 = 385,682.80 : x
  2. Step 2: Convert to fraction form
    609,631.60/914,447.40 = 385,682.80/x
  3. Step 3: Cross multiply
    609,631.60x = 914,447.40 × 385,682.80
  4. Step 4: Simplify right side
    609,631.60x = 352,686,633,684.72
  5. Step 5: Solve for x
    x = 352,686,633,684.72/609,631.60
  6. Step 6: Final answer
    x = 578,524.20

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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.