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Finding the Fourth Proportional to 4,392.63, 6,588.95 and 2,205.63

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Solution

The fourth proportional to 4,392.63, 6,588.95 and 2,205.63 is: 3,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,392.63 : 6,588.95 = 2,205.63 : x
  2. Step 2: Convert to fraction form
    4,392.63/6,588.95 = 2,205.63/x
  3. Step 3: Cross multiply
    4,392.63x = 6,588.95 × 2,205.63
  4. Step 4: Simplify right side
    4,392.63x = 14,532,774.76
  5. Step 5: Solve for x
    x = 14,532,774.76/4,392.63
  6. Step 6: Final answer
    x = 3,308.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.