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Finding the Fourth Proportional to 1,839,873,800.40, 2,759,810,700.60 and 856,973,670.90

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Solution

The fourth proportional to 1,839,873,800.40, 2,759,810,700.60 and 856,973,670.90 is: 1,285,460,506.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839,873,800.40 : 2,759,810,700.60 = 856,973,670.90 : x
  2. Step 2: Convert to fraction form
    1,839,873,800.40/2,759,810,700.60 = 856,973,670.90/x
  3. Step 3: Cross multiply
    1,839,873,800.40x = 2,759,810,700.60 × 856,973,670.90
  4. Step 4: Simplify right side
    1,839,873,800.40x = 2,365,085,107,082,282,496
  5. Step 5: Solve for x
    x = 2,365,085,107,082,282,496/1,839,873,800.40
  6. Step 6: Final answer
    x = 1,285,460,506.35

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Double scale
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1.5x scale

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.