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Finding the Fourth Proportional to 2,649.19, 3,973.84 and 894.23

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Solution

The fourth proportional to 2,649.19, 3,973.84 and 894.23 is: 1,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.19 : 3,973.84 = 894.23 : x
  2. Step 2: Convert to fraction form
    2,649.19/3,973.84 = 894.23/x
  3. Step 3: Cross multiply
    2,649.19x = 3,973.84 × 894.23
  4. Step 4: Simplify right side
    2,649.19x = 3,553,526.94
  5. Step 5: Solve for x
    x = 3,553,526.94/2,649.19
  6. Step 6: Final answer
    x = 1,341.36

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,650.19, 3,975.34 and 895.23
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.