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Finding the Fourth Proportional to 602,613.22, 831,603.96 and 330,685.66

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Solution

The fourth proportional to 602,613.22, 831,603.96 and 330,685.66 is: 456,344.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,613.22 : 831,603.96 = 330,685.66 : x
  2. Step 2: Convert to fraction form
    602,613.22/831,603.96 = 330,685.66/x
  3. Step 3: Cross multiply
    602,613.22x = 831,603.96 × 330,685.66
  4. Step 4: Simplify right side
    602,613.22x = 274,999,504,371.21
  5. Step 5: Solve for x
    x = 274,999,504,371.21/602,613.22
  6. Step 6: Final answer
    x = 456,344.96

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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.