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Finding the Fourth Proportional to 528,991.82, 793,237.58 and 204,931.70

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Solution

The fourth proportional to 528,991.82, 793,237.58 and 204,931.70 is: 307,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,991.82 : 793,237.58 = 204,931.70 : x
  2. Step 2: Convert to fraction form
    528,991.82/793,237.58 = 204,931.70/x
  3. Step 3: Cross multiply
    528,991.82x = 793,237.58 × 204,931.70
  4. Step 4: Simplify right side
    528,991.82x = 162,559,520,782.44
  5. Step 5: Solve for x
    x = 162,559,520,782.44/528,991.82
  6. Step 6: Final answer
    x = 307,300.64

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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.