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Finding the Fourth Proportional to 1,393,686,212.22, 1,923,337,725.93 and 758,576,020.05

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Solution

The fourth proportional to 1,393,686,212.22, 1,923,337,725.93 and 758,576,020.05 is: 1,046,862,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,686,212.22 : 1,923,337,725.93 = 758,576,020.05 : x
  2. Step 2: Convert to fraction form
    1,393,686,212.22/1,923,337,725.93 = 758,576,020.05/x
  3. Step 3: Cross multiply
    1,393,686,212.22x = 1,923,337,725.93 × 758,576,020.05
  4. Step 4: Simplify right side
    1,393,686,212.22x = 1,458,997,877,347,996,928
  5. Step 5: Solve for x
    x = 1,458,997,877,347,996,928/1,393,686,212.22
  6. Step 6: Final answer
    x = 1,046,862,532.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.