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Finding the Fourth Proportional to 631,888.33, 947,832.50 and 211,164.20

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Solution

The fourth proportional to 631,888.33, 947,832.50 and 211,164.20 is: 316,746.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,888.33 : 947,832.50 = 211,164.20 : x
  2. Step 2: Convert to fraction form
    631,888.33/947,832.50 = 211,164.20/x
  3. Step 3: Cross multiply
    631,888.33x = 947,832.50 × 211,164.20
  4. Step 4: Simplify right side
    631,888.33x = 200,148,291,596.50
  5. Step 5: Solve for x
    x = 200,148,291,596.50/631,888.33
  6. Step 6: Final answer
    x = 316,746.30

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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.