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Finding the Fourth Proportional to 358,583,978.52, 495,074,369.38 and 292,661,724.14

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Solution

The fourth proportional to 358,583,978.52, 495,074,369.38 and 292,661,724.14 is: 404,059,654.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,583,978.52 : 495,074,369.38 = 292,661,724.14 : x
  2. Step 2: Convert to fraction form
    358,583,978.52/495,074,369.38 = 292,661,724.14/x
  3. Step 3: Cross multiply
    358,583,978.52x = 495,074,369.38 × 292,661,724.14
  4. Step 4: Simplify right side
    358,583,978.52x = 144,889,318,520,274,016
  5. Step 5: Solve for x
    x = 144,889,318,520,274,016/358,583,978.52
  6. Step 6: Final answer
    x = 404,059,654.64

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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.