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Finding the Fourth Proportional to 528,491.48, 792,708.94 and 186,911.24

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Solution

The fourth proportional to 528,491.48, 792,708.94 and 186,911.24 is: 280,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,491.48 : 792,708.94 = 186,911.24 : x
  2. Step 2: Convert to fraction form
    528,491.48/792,708.94 = 186,911.24/x
  3. Step 3: Cross multiply
    528,491.48x = 792,708.94 × 186,911.24
  4. Step 4: Simplify right side
    528,491.48x = 148,166,209,999.93
  5. Step 5: Solve for x
    x = 148,166,209,999.93/528,491.48
  6. Step 6: Final answer
    x = 280,356.86

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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.