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Finding the Fourth Proportional to 528,490.50, 792,589.94 and 149,381.34

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Solution

The fourth proportional to 528,490.50, 792,589.94 and 149,381.34 is: 224,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,490.50 : 792,589.94 = 149,381.34 : x
  2. Step 2: Convert to fraction form
    528,490.50/792,589.94 = 149,381.34/x
  3. Step 3: Cross multiply
    528,490.50x = 792,589.94 × 149,381.34
  4. Step 4: Simplify right side
    528,490.50x = 118,398,147,307.72
  5. Step 5: Solve for x
    x = 118,398,147,307.72/528,490.50
  6. Step 6: Final answer
    x = 224,030.80

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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.