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Finding the Fourth Proportional to 881,375,573.84, 1,216,298,236.32 and 484,890,057.63

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Solution

The fourth proportional to 881,375,573.84, 1,216,298,236.32 and 484,890,057.63 is: 669,148,248.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,375,573.84 : 1,216,298,236.32 = 484,890,057.63 : x
  2. Step 2: Convert to fraction form
    881,375,573.84/1,216,298,236.32 = 484,890,057.63/x
  3. Step 3: Cross multiply
    881,375,573.84x = 1,216,298,236.32 × 484,890,057.63
  4. Step 4: Simplify right side
    881,375,573.84x = 589,770,921,904,472,064
  5. Step 5: Solve for x
    x = 589,770,921,904,472,064/881,375,573.84
  6. Step 6: Final answer
    x = 669,148,248.96

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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.