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Finding the Fourth Proportional to 443,690.06, 612,292.48 and 242,486.06

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Solution

The fourth proportional to 443,690.06, 612,292.48 and 242,486.06 is: 334,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,690.06 : 612,292.48 = 242,486.06 : x
  2. Step 2: Convert to fraction form
    443,690.06/612,292.48 = 242,486.06/x
  3. Step 3: Cross multiply
    443,690.06x = 612,292.48 × 242,486.06
  4. Step 4: Simplify right side
    443,690.06x = 148,472,391,042.83
  5. Step 5: Solve for x
    x = 148,472,391,042.83/443,690.06
  6. Step 6: Final answer
    x = 334,630.87

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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.