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Finding the Fourth Proportional to 587,153.91, 810,275.49 and 329,031.48

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Solution

The fourth proportional to 587,153.91, 810,275.49 and 329,031.48 is: 454,065.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,153.91 : 810,275.49 = 329,031.48 : x
  2. Step 2: Convert to fraction form
    587,153.91/810,275.49 = 329,031.48/x
  3. Step 3: Cross multiply
    587,153.91x = 810,275.49 × 329,031.48
  4. Step 4: Simplify right side
    587,153.91x = 266,606,143,682.43
  5. Step 5: Solve for x
    x = 266,606,143,682.43/587,153.91
  6. Step 6: Final answer
    x = 454,065.18

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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.