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Finding the Fourth Proportional to 954,647.40, 1,431,971.10 and 824,739.60

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Solution

The fourth proportional to 954,647.40, 1,431,971.10 and 824,739.60 is: 1,237,109.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    954,647.40 : 1,431,971.10 = 824,739.60 : x
  2. Step 2: Convert to fraction form
    954,647.40/1,431,971.10 = 824,739.60/x
  3. Step 3: Cross multiply
    954,647.40x = 1,431,971.10 × 824,739.60
  4. Step 4: Simplify right side
    954,647.40x = 1,181,003,272,225.56
  5. Step 5: Solve for x
    x = 1,181,003,272,225.56/954,647.40
  6. Step 6: Final answer
    x = 1,237,109.40

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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.