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Finding the Fourth Proportional to 561,952,666.44, 775,402,167.06 and 352,959,939.72

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Solution

The fourth proportional to 561,952,666.44, 775,402,167.06 and 352,959,939.72 is: 487,026,610.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,952,666.44 : 775,402,167.06 = 352,959,939.72 : x
  2. Step 2: Convert to fraction form
    561,952,666.44/775,402,167.06 = 352,959,939.72/x
  3. Step 3: Cross multiply
    561,952,666.44x = 775,402,167.06 × 352,959,939.72
  4. Step 4: Simplify right side
    561,952,666.44x = 273,685,902,144,254,976
  5. Step 5: Solve for x
    x = 273,685,902,144,254,976/561,952,666.44
  6. Step 6: Final answer
    x = 487,026,610.05

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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.