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Finding the Fourth Proportional to 670,652,636.54, 925,500,681.09 and 373,288,477.28

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Solution

The fourth proportional to 670,652,636.54, 925,500,681.09 and 373,288,477.28 is: 515,138,122.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,652,636.54 : 925,500,681.09 = 373,288,477.28 : x
  2. Step 2: Convert to fraction form
    670,652,636.54/925,500,681.09 = 373,288,477.28/x
  3. Step 3: Cross multiply
    670,652,636.54x = 925,500,681.09 × 373,288,477.28
  4. Step 4: Simplify right side
    670,652,636.54x = 345,478,739,961,061,504
  5. Step 5: Solve for x
    x = 345,478,739,961,061,504/670,652,636.54
  6. Step 6: Final answer
    x = 515,138,122.39

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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.