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Finding the Fourth Proportional to 1,731,224.79, 2,389,213.85 and 956,839.01

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Solution

The fourth proportional to 1,731,224.79, 2,389,213.85 and 956,839.01 is: 1,320,506.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,731,224.79 : 2,389,213.85 = 956,839.01 : x
  2. Step 2: Convert to fraction form
    1,731,224.79/2,389,213.85 = 956,839.01/x
  3. Step 3: Cross multiply
    1,731,224.79x = 2,389,213.85 × 956,839.01
  4. Step 4: Simplify right side
    1,731,224.79x = 2,286,092,998,182.02
  5. Step 5: Solve for x
    x = 2,286,092,998,182.02/1,731,224.79
  6. Step 6: Final answer
    x = 1,320,506.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.