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Finding the Fourth Proportional to 1,393,947,033.94, 1,923,577,713.30 and 767,402,009.74

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Solution

The fourth proportional to 1,393,947,033.94, 1,923,577,713.30 and 767,402,009.74 is: 1,058,976,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,947,033.94 : 1,923,577,713.30 = 767,402,009.74 : x
  2. Step 2: Convert to fraction form
    1,393,947,033.94/1,923,577,713.30 = 767,402,009.74/x
  3. Step 3: Cross multiply
    1,393,947,033.94x = 1,923,577,713.30 × 767,402,009.74
  4. Step 4: Simplify right side
    1,393,947,033.94x = 1,476,157,403,077,493,504
  5. Step 5: Solve for x
    x = 1,476,157,403,077,493,504/1,393,947,033.94
  6. Step 6: Final answer
    x = 1,058,976,680.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.