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Finding the Fourth Proportional to 358,966,287.26, 495,411,561.11 and 210,412,221.24

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Solution

The fourth proportional to 358,966,287.26, 495,411,561.11 and 210,412,221.24 is: 290,391,189.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,966,287.26 : 495,411,561.11 = 210,412,221.24 : x
  2. Step 2: Convert to fraction form
    358,966,287.26/495,411,561.11 = 210,412,221.24/x
  3. Step 3: Cross multiply
    358,966,287.26x = 495,411,561.11 × 210,412,221.24
  4. Step 4: Simplify right side
    358,966,287.26x = 104,240,647,003,519,872
  5. Step 5: Solve for x
    x = 104,240,647,003,519,872/358,966,287.26
  6. Step 6: Final answer
    x = 290,391,189.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.