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Finding the Fourth Proportional to 1,658,886,530.87, 2,289,171,533.87 and 906,049,813.61

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Solution

The fourth proportional to 1,658,886,530.87, 2,289,171,533.87 and 906,049,813.61 is: 1,250,298,560.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658,886,530.87 : 2,289,171,533.87 = 906,049,813.61 : x
  2. Step 2: Convert to fraction form
    1,658,886,530.87/2,289,171,533.87 = 906,049,813.61/x
  3. Step 3: Cross multiply
    1,658,886,530.87x = 2,289,171,533.87 × 906,049,813.61
  4. Step 4: Simplify right side
    1,658,886,530.87x = 2,074,103,441,568,254,976
  5. Step 5: Solve for x
    x = 2,074,103,441,568,254,976/1,658,886,530.87
  6. Step 6: Final answer
    x = 1,250,298,560.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.