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Finding the Fourth Proportional to 633,071.66, 949,607.48 and 212,346.32

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Solution

The fourth proportional to 633,071.66, 949,607.48 and 212,346.32 is: 318,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,071.66 : 949,607.48 = 212,346.32 : x
  2. Step 2: Convert to fraction form
    633,071.66/949,607.48 = 212,346.32/x
  3. Step 3: Cross multiply
    633,071.66x = 949,607.48 × 212,346.32
  4. Step 4: Simplify right side
    633,071.66x = 201,645,649,605.30
  5. Step 5: Solve for x
    x = 201,645,649,605.30/633,071.66
  6. Step 6: Final answer
    x = 318,519.47

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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.