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Finding the Fourth Proportional to 653,458,986.30, 915,522,825.30 and 653,458,986.30

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Solution

The fourth proportional to 653,458,986.30, 915,522,825.30 and 653,458,986.30 is: 915,522,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,458,986.30 : 915,522,825.30 = 653,458,986.30 : x
  2. Step 2: Convert to fraction form
    653,458,986.30/915,522,825.30 = 653,458,986.30/x
  3. Step 3: Cross multiply
    653,458,986.30x = 915,522,825.30 × 653,458,986.30
  4. Step 4: Simplify right side
    653,458,986.30x = 598,256,617,355,049,856
  5. Step 5: Solve for x
    x = 598,256,617,355,049,856/653,458,986.30
  6. Step 6: Final answer
    x = 915,522,825.30

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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.