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Finding the Fourth Proportional to 625,553.40, 863,268.18 and 339,075.48

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Solution

The fourth proportional to 625,553.40, 863,268.18 and 339,075.48 is: 467,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,553.40 : 863,268.18 = 339,075.48 : x
  2. Step 2: Convert to fraction form
    625,553.40/863,268.18 = 339,075.48/x
  3. Step 3: Cross multiply
    625,553.40x = 863,268.18 × 339,075.48
  4. Step 4: Simplify right side
    625,553.40x = 292,713,072,502.23
  5. Step 5: Solve for x
    x = 292,713,072,502.23/625,553.40
  6. Step 6: Final answer
    x = 467,926.60

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