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Finding the Fourth Proportional to 940,141,848.51, 1,296,028,375.50 and 657,005,228.67

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Solution

The fourth proportional to 940,141,848.51, 1,296,028,375.50 and 657,005,228.67 is: 905,711,644.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,141,848.51 : 1,296,028,375.50 = 657,005,228.67 : x
  2. Step 2: Convert to fraction form
    940,141,848.51/1,296,028,375.50 = 657,005,228.67/x
  3. Step 3: Cross multiply
    940,141,848.51x = 1,296,028,375.50 × 657,005,228.67
  4. Step 4: Simplify right side
    940,141,848.51x = 851,497,419,208,186,112
  5. Step 5: Solve for x
    x = 851,497,419,208,186,112/940,141,848.51
  6. Step 6: Final answer
    x = 905,711,644.00

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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.