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Finding the Fourth Proportional to 572,564.43, 858,494 and 193,449.35

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Solution

The fourth proportional to 572,564.43, 858,494 and 193,449.35 is: 290,054.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,564.43 : 858,494 = 193,449.35 : x
  2. Step 2: Convert to fraction form
    572,564.43/858,494 = 193,449.35/x
  3. Step 3: Cross multiply
    572,564.43x = 858,494 × 193,449.35
  4. Step 4: Simplify right side
    572,564.43x = 166,075,106,278.90
  5. Step 5: Solve for x
    x = 166,075,106,278.90/572,564.43
  6. Step 6: Final answer
    x = 290,054.88

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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.