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Finding the Fourth Proportional to 907,544,562.54, 1,252,990,775.30 and 740,679,469.67

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Solution

The fourth proportional to 907,544,562.54, 1,252,990,775.30 and 740,679,469.67 is: 1,022,610,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,544,562.54 : 1,252,990,775.30 = 740,679,469.67 : x
  2. Step 2: Convert to fraction form
    907,544,562.54/1,252,990,775.30 = 740,679,469.67/x
  3. Step 3: Cross multiply
    907,544,562.54x = 1,252,990,775.30 × 740,679,469.67
  4. Step 4: Simplify right side
    907,544,562.54x = 928,064,542,940,637,824
  5. Step 5: Solve for x
    x = 928,064,542,940,637,824/907,544,562.54
  6. Step 6: Final answer
    x = 1,022,610,438.37

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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.