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Finding the Fourth Proportional to 657,598,562.61, 907,478,784.24 and 356,176,375.22

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Solution

The fourth proportional to 657,598,562.61, 907,478,784.24 and 356,176,375.22 is: 491,519,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,598,562.61 : 907,478,784.24 = 356,176,375.22 : x
  2. Step 2: Convert to fraction form
    657,598,562.61/907,478,784.24 = 356,176,375.22/x
  3. Step 3: Cross multiply
    657,598,562.61x = 907,478,784.24 × 356,176,375.22
  4. Step 4: Simplify right side
    657,598,562.61x = 323,222,503,959,887,232
  5. Step 5: Solve for x
    x = 323,222,503,959,887,232/657,598,562.61
  6. Step 6: Final answer
    x = 491,519,480.63

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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.