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Finding the Fourth Proportional to 586,271.88, 808,987.10 and 328,163.21

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Solution

The fourth proportional to 586,271.88, 808,987.10 and 328,163.21 is: 452,827.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,271.88 : 808,987.10 = 328,163.21 : x
  2. Step 2: Convert to fraction form
    586,271.88/808,987.10 = 328,163.21/x
  3. Step 3: Cross multiply
    586,271.88x = 808,987.10 × 328,163.21
  4. Step 4: Simplify right side
    586,271.88x = 265,479,797,898.84
  5. Step 5: Solve for x
    x = 265,479,797,898.84/586,271.88
  6. Step 6: Final answer
    x = 452,827.10

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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.