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Finding the Fourth Proportional to 354,077,497, 488,626,945.88 and 207,399,781

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Solution

The fourth proportional to 354,077,497, 488,626,945.88 and 207,399,781 is: 286,211,697.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,077,497 : 488,626,945.88 = 207,399,781 : x
  2. Step 2: Convert to fraction form
    354,077,497/488,626,945.88 = 207,399,781/x
  3. Step 3: Cross multiply
    354,077,497x = 488,626,945.88 × 207,399,781
  4. Step 4: Simplify right side
    354,077,497x = 101,341,121,566,210,848
  5. Step 5: Solve for x
    x = 101,341,121,566,210,848/354,077,497
  6. Step 6: Final answer
    x = 286,211,697.79

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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.