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Finding the Fourth Proportional to 996,991,833.60, 1,375,852,941.96 and 544,879,031.67

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Solution

The fourth proportional to 996,991,833.60, 1,375,852,941.96 and 544,879,031.67 is: 751,935,365.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,991,833.60 : 1,375,852,941.96 = 544,879,031.67 : x
  2. Step 2: Convert to fraction form
    996,991,833.60/1,375,852,941.96 = 544,879,031.67/x
  3. Step 3: Cross multiply
    996,991,833.60x = 1,375,852,941.96 × 544,879,031.67
  4. Step 4: Simplify right side
    996,991,833.60x = 749,673,418,735,485,440
  5. Step 5: Solve for x
    x = 749,673,418,735,485,440/996,991,833.60
  6. Step 6: Final answer
    x = 751,935,365.44

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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.