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Finding the Fourth Proportional to 568,283.77, 784,333.29 and 338,855.86

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Solution

The fourth proportional to 568,283.77, 784,333.29 and 338,855.86 is: 467,681.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,283.77 : 784,333.29 = 338,855.86 : x
  2. Step 2: Convert to fraction form
    568,283.77/784,333.29 = 338,855.86/x
  3. Step 3: Cross multiply
    568,283.77x = 784,333.29 × 338,855.86
  4. Step 4: Simplify right side
    568,283.77x = 265,775,931,509.58
  5. Step 5: Solve for x
    x = 265,775,931,509.58/568,283.77
  6. Step 6: Final answer
    x = 467,681.72

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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.