Home / 623,121.60-934,682.40-386,731.20

Finding the Fourth Proportional to 623,121.60, 934,682.40 and 386,731.20

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Solution

The fourth proportional to 623,121.60, 934,682.40 and 386,731.20 is: 580,096.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,121.60 : 934,682.40 = 386,731.20 : x
  2. Step 2: Convert to fraction form
    623,121.60/934,682.40 = 386,731.20/x
  3. Step 3: Cross multiply
    623,121.60x = 934,682.40 × 386,731.20
  4. Step 4: Simplify right side
    623,121.60x = 361,470,846,170.88
  5. Step 5: Solve for x
    x = 361,470,846,170.88/623,121.60
  6. Step 6: Final answer
    x = 580,096.80

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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.