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Finding the Fourth Proportional to 347,966,893.91, 480,211,551.65 and 215,850,458.34

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Solution

The fourth proportional to 347,966,893.91, 480,211,551.65 and 215,850,458.34 is: 297,884,325.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,966,893.91 : 480,211,551.65 = 215,850,458.34 : x
  2. Step 2: Convert to fraction form
    347,966,893.91/480,211,551.65 = 215,850,458.34/x
  3. Step 3: Cross multiply
    347,966,893.91x = 480,211,551.65 × 215,850,458.34
  4. Step 4: Simplify right side
    347,966,893.91x = 103,653,883,524,354,704
  5. Step 5: Solve for x
    x = 103,653,883,524,354,704/347,966,893.91
  6. Step 6: Final answer
    x = 297,884,325.60

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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.