Home / 620,387,647,173.10-929,278,268,302.85-393,630,378,660.48

Finding the Fourth Proportional to 620,387,647,173.10, 929,278,268,302.85 and 393,630,378,660.48

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Solution

The fourth proportional to 620,387,647,173.10, 929,278,268,302.85 and 393,630,378,660.48 is: 589,618,697,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,387,647,173.10 : 929,278,268,302.85 = 393,630,378,660.48 : x
  2. Step 2: Convert to fraction form
    620,387,647,173.10/929,278,268,302.85 = 393,630,378,660.48/x
  3. Step 3: Cross multiply
    620,387,647,173.10x = 929,278,268,302.85 × 393,630,378,660.48
  4. Step 4: Simplify right side
    620,387,647,173.10x = 365,792,156,633,005,962,559,488
  5. Step 5: Solve for x
    x = 365,792,156,633,005,962,559,488/620,387,647,173.10
  6. Step 6: Final answer
    x = 589,618,697,760.67

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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.