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Finding the Fourth Proportional to 571,082.33, 788,094.54 and 312,918.26

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Solution

The fourth proportional to 571,082.33, 788,094.54 and 312,918.26 is: 431,827.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,082.33 : 788,094.54 = 312,918.26 : x
  2. Step 2: Convert to fraction form
    571,082.33/788,094.54 = 312,918.26/x
  3. Step 3: Cross multiply
    571,082.33x = 788,094.54 × 312,918.26
  4. Step 4: Simplify right side
    571,082.33x = 246,609,172,172.30
  5. Step 5: Solve for x
    x = 246,609,172,172.30/571,082.33
  6. Step 6: Final answer
    x = 431,827.71

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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.