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Finding the Fourth Proportional to 401,487.75, 602,389.25 and 176,690.51

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Solution

The fourth proportional to 401,487.75, 602,389.25 and 176,690.51 is: 265,105.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,487.75 : 602,389.25 = 176,690.51 : x
  2. Step 2: Convert to fraction form
    401,487.75/602,389.25 = 176,690.51/x
  3. Step 3: Cross multiply
    401,487.75x = 602,389.25 × 176,690.51
  4. Step 4: Simplify right side
    401,487.75x = 106,436,465,748.72
  5. Step 5: Solve for x
    x = 106,436,465,748.72/401,487.75
  6. Step 6: Final answer
    x = 265,105.14

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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.