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Finding the Fourth Proportional to 583,401.72, 805,021.74 and 325,215.30

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Solution

The fourth proportional to 583,401.72, 805,021.74 and 325,215.30 is: 448,756.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,401.72 : 805,021.74 = 325,215.30 : x
  2. Step 2: Convert to fraction form
    583,401.72/805,021.74 = 325,215.30/x
  3. Step 3: Cross multiply
    583,401.72x = 805,021.74 × 325,215.30
  4. Step 4: Simplify right side
    583,401.72x = 261,805,386,680.62
  5. Step 5: Solve for x
    x = 261,805,386,680.62/583,401.72
  6. Step 6: Final answer
    x = 448,756.62

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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.