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Finding the Fourth Proportional to 1,180,250,866.74, 1,628,889,018.94 and 671,737,217.78

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Solution

The fourth proportional to 1,180,250,866.74, 1,628,889,018.94 and 671,737,217.78 is: 927,078,647.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,250,866.74 : 1,628,889,018.94 = 671,737,217.78 : x
  2. Step 2: Convert to fraction form
    1,180,250,866.74/1,628,889,018.94 = 671,737,217.78/x
  3. Step 3: Cross multiply
    1,180,250,866.74x = 1,628,889,018.94 × 671,737,217.78
  4. Step 4: Simplify right side
    1,180,250,866.74x = 1,094,185,377,647,004,928
  5. Step 5: Solve for x
    x = 1,094,185,377,647,004,928/1,180,250,866.74
  6. Step 6: Final answer
    x = 927,078,647.84

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1.5x scale

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.