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Finding the Fourth Proportional to 573,038.78, 859,953.03 and 199,061.78

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Solution

The fourth proportional to 573,038.78, 859,953.03 and 199,061.78 is: 298,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,038.78 : 859,953.03 = 199,061.78 : x
  2. Step 2: Convert to fraction form
    573,038.78/859,953.03 = 199,061.78/x
  3. Step 3: Cross multiply
    573,038.78x = 859,953.03 × 199,061.78
  4. Step 4: Simplify right side
    573,038.78x = 171,183,780,868.19
  5. Step 5: Solve for x
    x = 171,183,780,868.19/573,038.78
  6. Step 6: Final answer
    x = 298,729.84

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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.