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Finding the Fourth Proportional to 1,438,600,511.15, 2,016,081,449.05 and 1,438,600,511.15

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Solution

The fourth proportional to 1,438,600,511.15, 2,016,081,449.05 and 1,438,600,511.15 is: 2,016,081,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,600,511.15 : 2,016,081,449.05 = 1,438,600,511.15 : x
  2. Step 2: Convert to fraction form
    1,438,600,511.15/2,016,081,449.05 = 1,438,600,511.15/x
  3. Step 3: Cross multiply
    1,438,600,511.15x = 2,016,081,449.05 × 1,438,600,511.15
  4. Step 4: Simplify right side
    1,438,600,511.15x = 2,900,335,803,123,362,816
  5. Step 5: Solve for x
    x = 2,900,335,803,123,362,816/1,438,600,511.15
  6. Step 6: Final answer
    x = 2,016,081,449.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.