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Finding the Fourth Proportional to 1,628,448,636.80, 2,442,672,955.20 and 1,628,448,636.80

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Solution

The fourth proportional to 1,628,448,636.80, 2,442,672,955.20 and 1,628,448,636.80 is: 2,442,672,955.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628,448,636.80 : 2,442,672,955.20 = 1,628,448,636.80 : x
  2. Step 2: Convert to fraction form
    1,628,448,636.80/2,442,672,955.20 = 1,628,448,636.80/x
  3. Step 3: Cross multiply
    1,628,448,636.80x = 2,442,672,955.20 × 1,628,448,636.80
  4. Step 4: Simplify right side
    1,628,448,636.80x = 3,977,767,444,043,666,944
  5. Step 5: Solve for x
    x = 3,977,767,444,043,666,944/1,628,448,636.80
  6. Step 6: Final answer
    x = 2,442,672,955.20

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1.5x scale

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.