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Finding the Fourth Proportional to 1,340,995.64, 1,850,574 and 737,383.64

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Solution

The fourth proportional to 1,340,995.64, 1,850,574 and 737,383.64 is: 1,017,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,995.64 : 1,850,574 = 737,383.64 : x
  2. Step 2: Convert to fraction form
    1,340,995.64/1,850,574 = 737,383.64/x
  3. Step 3: Cross multiply
    1,340,995.64x = 1,850,574 × 737,383.64
  4. Step 4: Simplify right side
    1,340,995.64x = 1,364,582,992,209.36
  5. Step 5: Solve for x
    x = 1,364,582,992,209.36/1,340,995.64
  6. Step 6: Final answer
    x = 1,017,589.43

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.