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Finding the Fourth Proportional to 551,297,005.80, 772,389,764.40 and 551,297,005.80

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Solution

The fourth proportional to 551,297,005.80, 772,389,764.40 and 551,297,005.80 is: 772,389,764.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,297,005.80 : 772,389,764.40 = 551,297,005.80 : x
  2. Step 2: Convert to fraction form
    551,297,005.80/772,389,764.40 = 551,297,005.80/x
  3. Step 3: Cross multiply
    551,297,005.80x = 772,389,764.40 × 551,297,005.80
  4. Step 4: Simplify right side
    551,297,005.80x = 425,816,164,424,287,360
  5. Step 5: Solve for x
    x = 425,816,164,424,287,360/551,297,005.80
  6. Step 6: Final answer
    x = 772,389,764.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.