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Finding the Fourth Proportional to 561,952,668.44, 775,402,169.82 and 352,959,941.72

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Solution

The fourth proportional to 561,952,668.44, 775,402,169.82 and 352,959,941.72 is: 487,026,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,952,668.44 : 775,402,169.82 = 352,959,941.72 : x
  2. Step 2: Convert to fraction form
    561,952,668.44/775,402,169.82 = 352,959,941.72/x
  3. Step 3: Cross multiply
    561,952,668.44x = 775,402,169.82 × 352,959,941.72
  4. Step 4: Simplify right side
    561,952,668.44x = 273,685,904,669,228,768
  5. Step 5: Solve for x
    x = 273,685,904,669,228,768/561,952,668.44
  6. Step 6: Final answer
    x = 487,026,612.81

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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.