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Finding the Fourth Proportional to 574,870.26, 793,322.40 and 345,431.38

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Solution

The fourth proportional to 574,870.26, 793,322.40 and 345,431.38 is: 476,696.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,870.26 : 793,322.40 = 345,431.38 : x
  2. Step 2: Convert to fraction form
    574,870.26/793,322.40 = 345,431.38/x
  3. Step 3: Cross multiply
    574,870.26x = 793,322.40 × 345,431.38
  4. Step 4: Simplify right side
    574,870.26x = 274,038,451,416.91
  5. Step 5: Solve for x
    x = 274,038,451,416.91/574,870.26
  6. Step 6: Final answer
    x = 476,696.17

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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.