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Finding the Fourth Proportional to 528,870,665.70, 793,305,998.55 and 528,870,665.70

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Solution

The fourth proportional to 528,870,665.70, 793,305,998.55 and 528,870,665.70 is: 793,305,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,870,665.70 : 793,305,998.55 = 528,870,665.70 : x
  2. Step 2: Convert to fraction form
    528,870,665.70/793,305,998.55 = 528,870,665.70/x
  3. Step 3: Cross multiply
    528,870,665.70x = 793,305,998.55 × 528,870,665.70
  4. Step 4: Simplify right side
    528,870,665.70x = 419,556,271,556,941,696
  5. Step 5: Solve for x
    x = 419,556,271,556,941,696/528,870,665.70
  6. Step 6: Final answer
    x = 793,305,998.55

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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.