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Finding the Fourth Proportional to 492,798.61, 739,289.09 and 155,924.07

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Solution

The fourth proportional to 492,798.61, 739,289.09 and 155,924.07 is: 233,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,798.61 : 739,289.09 = 155,924.07 : x
  2. Step 2: Convert to fraction form
    492,798.61/739,289.09 = 155,924.07/x
  3. Step 3: Cross multiply
    492,798.61x = 739,289.09 × 155,924.07
  4. Step 4: Simplify right side
    492,798.61x = 115,272,960,122.95
  5. Step 5: Solve for x
    x = 115,272,960,122.95/492,798.61
  6. Step 6: Final answer
    x = 233,914.95

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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.