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Finding the Fourth Proportional to 1,618,929,074.60, 2,428,393,611.90 and 1,618,929,074.60

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Solution

The fourth proportional to 1,618,929,074.60, 2,428,393,611.90 and 1,618,929,074.60 is: 2,428,393,611.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,929,074.60 : 2,428,393,611.90 = 1,618,929,074.60 : x
  2. Step 2: Convert to fraction form
    1,618,929,074.60/2,428,393,611.90 = 1,618,929,074.60/x
  3. Step 3: Cross multiply
    1,618,929,074.60x = 2,428,393,611.90 × 1,618,929,074.60
  4. Step 4: Simplify right side
    1,618,929,074.60x = 3,931,397,022,877,818,368
  5. Step 5: Solve for x
    x = 3,931,397,022,877,818,368/1,618,929,074.60
  6. Step 6: Final answer
    x = 2,428,393,611.90

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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.