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Finding the Fourth Proportional to 653,458,708.80, 915,522,436.80 and 653,458,708.80

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Solution

The fourth proportional to 653,458,708.80, 915,522,436.80 and 653,458,708.80 is: 915,522,436.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,458,708.80 : 915,522,436.80 = 653,458,708.80 : x
  2. Step 2: Convert to fraction form
    653,458,708.80/915,522,436.80 = 653,458,708.80/x
  3. Step 3: Cross multiply
    653,458,708.80x = 915,522,436.80 × 653,458,708.80
  4. Step 4: Simplify right side
    653,458,708.80x = 598,256,109,428,757,504
  5. Step 5: Solve for x
    x = 598,256,109,428,757,504/653,458,708.80
  6. Step 6: Final answer
    x = 915,522,436.80

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Double scale
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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.