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Finding the Fourth Proportional to 965,571,731.46, 1,332,961,369.61 and 647,918,324.87

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Solution

The fourth proportional to 965,571,731.46, 1,332,961,369.61 and 647,918,324.87 is: 894,444,265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    965,571,731.46 : 1,332,961,369.61 = 647,918,324.87 : x
  2. Step 2: Convert to fraction form
    965,571,731.46/1,332,961,369.61 = 647,918,324.87/x
  3. Step 3: Cross multiply
    965,571,731.46x = 1,332,961,369.61 × 647,918,324.87
  4. Step 4: Simplify right side
    965,571,731.46x = 863,650,097,704,227,712
  5. Step 5: Solve for x
    x = 863,650,097,704,227,712/965,571,731.46
  6. Step 6: Final answer
    x = 894,444,265.06

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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.