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Finding the Fourth Proportional to 1,260,751,886.00, 1,892,275,423.38 and 671,037,217.80

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Solution

The fourth proportional to 1,260,751,886.00, 1,892,275,423.38 and 671,037,217.80 is: 1,007,166,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,751,886.00 : 1,892,275,423.38 = 671,037,217.80 : x
  2. Step 2: Convert to fraction form
    1,260,751,886.00/1,892,275,423.38 = 671,037,217.80/x
  3. Step 3: Cross multiply
    1,260,751,886.00x = 1,892,275,423.38 × 671,037,217.80
  4. Step 4: Simplify right side
    1,260,751,886.00x = 1,269,787,235,409,117,440
  5. Step 5: Solve for x
    x = 1,269,787,235,409,117,440/1,260,751,886.00
  6. Step 6: Final answer
    x = 1,007,166,635.65

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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.