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Finding the Fourth Proportional to 711,739,246.60, 1,067,769,855 and 384,207,730

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Solution

The fourth proportional to 711,739,246.60, 1,067,769,855 and 384,207,730 is: 576,398,497.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,739,246.60 : 1,067,769,855 = 384,207,730 : x
  2. Step 2: Convert to fraction form
    711,739,246.60/1,067,769,855 = 384,207,730/x
  3. Step 3: Cross multiply
    711,739,246.60x = 1,067,769,855 × 384,207,730
  4. Step 4: Simplify right side
    711,739,246.60x = 410,245,432,151,979,136
  5. Step 5: Solve for x
    x = 410,245,432,151,979,136/711,739,246.60
  6. Step 6: Final answer
    x = 576,398,497.22

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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.