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Finding the Fourth Proportional to 630,846,019.60, 946,269,029.40 and 267,293,136.40

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Solution

The fourth proportional to 630,846,019.60, 946,269,029.40 and 267,293,136.40 is: 400,939,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,846,019.60 : 946,269,029.40 = 267,293,136.40 : x
  2. Step 2: Convert to fraction form
    630,846,019.60/946,269,029.40 = 267,293,136.40/x
  3. Step 3: Cross multiply
    630,846,019.60x = 946,269,029.40 × 267,293,136.40
  4. Step 4: Simplify right side
    630,846,019.60x = 252,931,216,746,509,824
  5. Step 5: Solve for x
    x = 252,931,216,746,509,824/630,846,019.60
  6. Step 6: Final answer
    x = 400,939,704.60

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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.