Home / 631,877.40-947,816.10-276,514.20

Finding the Fourth Proportional to 631,877.40, 947,816.10 and 276,514.20

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Solution

The fourth proportional to 631,877.40, 947,816.10 and 276,514.20 is: 414,771.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,877.40 : 947,816.10 = 276,514.20 : x
  2. Step 2: Convert to fraction form
    631,877.40/947,816.10 = 276,514.20/x
  3. Step 3: Cross multiply
    631,877.40x = 947,816.10 × 276,514.20
  4. Step 4: Simplify right side
    631,877.40x = 262,084,610,638.62
  5. Step 5: Solve for x
    x = 262,084,610,638.62/631,877.40
  6. Step 6: Final answer
    x = 414,771.30

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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.