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Finding the Fourth Proportional to 717,498,003.70, 1,076,247,005.55 and 626,798,739.70

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Solution

The fourth proportional to 717,498,003.70, 1,076,247,005.55 and 626,798,739.70 is: 940,198,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,498,003.70 : 1,076,247,005.55 = 626,798,739.70 : x
  2. Step 2: Convert to fraction form
    717,498,003.70/1,076,247,005.55 = 626,798,739.70/x
  3. Step 3: Cross multiply
    717,498,003.70x = 1,076,247,005.55 × 626,798,739.70
  4. Step 4: Simplify right side
    717,498,003.70x = 674,590,266,684,638,976
  5. Step 5: Solve for x
    x = 674,590,266,684,638,976/717,498,003.70
  6. Step 6: Final answer
    x = 940,198,109.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.