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Finding the Fourth Proportional to 386,450,999.10, 579,676,498.65 and 386,450,999.10

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Solution

The fourth proportional to 386,450,999.10, 579,676,498.65 and 386,450,999.10 is: 579,676,498.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,450,999.10 : 579,676,498.65 = 386,450,999.10 : x
  2. Step 2: Convert to fraction form
    386,450,999.10/579,676,498.65 = 386,450,999.10/x
  3. Step 3: Cross multiply
    386,450,999.10x = 579,676,498.65 × 386,450,999.10
  4. Step 4: Simplify right side
    386,450,999.10x = 224,016,562,058,082,304
  5. Step 5: Solve for x
    x = 224,016,562,058,082,304/386,450,999.10
  6. Step 6: Final answer
    x = 579,676,498.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.