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Finding the Fourth Proportional to 576,392.88, 864,570.72 and 260,849.76

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Solution

The fourth proportional to 576,392.88, 864,570.72 and 260,849.76 is: 391,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,392.88 : 864,570.72 = 260,849.76 : x
  2. Step 2: Convert to fraction form
    576,392.88/864,570.72 = 260,849.76/x
  3. Step 3: Cross multiply
    576,392.88x = 864,570.72 × 260,849.76
  4. Step 4: Simplify right side
    576,392.88x = 225,523,064,815.03
  5. Step 5: Solve for x
    x = 225,523,064,815.03/576,392.88
  6. Step 6: Final answer
    x = 391,266.22

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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.