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Finding the Fourth Proportional to 606.16, 837.21 and 440.11

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Solution

The fourth proportional to 606.16, 837.21 and 440.11 is: 607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.16 : 837.21 = 440.11 : x
  2. Step 2: Convert to fraction form
    606.16/837.21 = 440.11/x
  3. Step 3: Cross multiply
    606.16x = 837.21 × 440.11
  4. Step 4: Simplify right side
    606.16x = 368,464.49
  5. Step 5: Solve for x
    x = 368,464.49/606.16
  6. Step 6: Final answer
    x = 607.87

Related Problems

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Half scale
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Double scale
Find fourth proportional to 607.16, 838.59 and 441.11
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.