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Finding the Fourth Proportional to 1,375,490,371.80, 2,063,235,557.70 and 940,133,904.60

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Solution

The fourth proportional to 1,375,490,371.80, 2,063,235,557.70 and 940,133,904.60 is: 1,410,200,856.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,490,371.80 : 2,063,235,557.70 = 940,133,904.60 : x
  2. Step 2: Convert to fraction form
    1,375,490,371.80/2,063,235,557.70 = 940,133,904.60/x
  3. Step 3: Cross multiply
    1,375,490,371.80x = 2,063,235,557.70 × 940,133,904.60
  4. Step 4: Simplify right side
    1,375,490,371.80x = 1,939,717,700,970,059,776
  5. Step 5: Solve for x
    x = 1,939,717,700,970,059,776/1,375,490,371.80
  6. Step 6: Final answer
    x = 1,410,200,856.90

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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.