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Finding the Fourth Proportional to 956,434.80, 1,431,541.80 and 744,927.60

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Solution

The fourth proportional to 956,434.80, 1,431,541.80 and 744,927.60 is: 1,114,968.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,434.80 : 1,431,541.80 = 744,927.60 : x
  2. Step 2: Convert to fraction form
    956,434.80/1,431,541.80 = 744,927.60/x
  3. Step 3: Cross multiply
    956,434.80x = 1,431,541.80 × 744,927.60
  4. Step 4: Simplify right side
    956,434.80x = 1,066,394,997,373.68
  5. Step 5: Solve for x
    x = 1,066,394,997,373.68/956,434.80
  6. Step 6: Final answer
    x = 1,114,968.84

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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.