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Finding the Fourth Proportional to 628,208.94, 866,934.98 and 341,729.76

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Solution

The fourth proportional to 628,208.94, 866,934.98 and 341,729.76 is: 471,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,208.94 : 866,934.98 = 341,729.76 : x
  2. Step 2: Convert to fraction form
    628,208.94/866,934.98 = 341,729.76/x
  3. Step 3: Cross multiply
    628,208.94x = 866,934.98 × 341,729.76
  4. Step 4: Simplify right side
    628,208.94x = 296,257,482,651.01
  5. Step 5: Solve for x
    x = 296,257,482,651.01/628,208.94
  6. Step 6: Final answer
    x = 471,590.68

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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.