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Finding the Fourth Proportional to 621,688.05, 932,494.01 and 365,662.20

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Solution

The fourth proportional to 621,688.05, 932,494.01 and 365,662.20 is: 548,470.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,688.05 : 932,494.01 = 365,662.20 : x
  2. Step 2: Convert to fraction form
    621,688.05/932,494.01 = 365,662.20/x
  3. Step 3: Cross multiply
    621,688.05x = 932,494.01 × 365,662.20
  4. Step 4: Simplify right side
    621,688.05x = 340,977,812,851.96
  5. Step 5: Solve for x
    x = 340,977,812,851.96/621,688.05
  6. Step 6: Final answer
    x = 548,470.91

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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.