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Finding the Fourth Proportional to 839,809,322.80, 1,173,012,074 and 839,809,322.80

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Solution

The fourth proportional to 839,809,322.80, 1,173,012,074 and 839,809,322.80 is: 1,173,012,074

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,322.80 : 1,173,012,074 = 839,809,322.80 : x
  2. Step 2: Convert to fraction form
    839,809,322.80/1,173,012,074 = 839,809,322.80/x
  3. Step 3: Cross multiply
    839,809,322.80x = 1,173,012,074 × 839,809,322.80
  4. Step 4: Simplify right side
    839,809,322.80x = 985,106,475,502,163,456
  5. Step 5: Solve for x
    x = 985,106,475,502,163,456/839,809,322.80
  6. Step 6: Final answer
    x = 1,173,012,074

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.