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Finding the Fourth Proportional to 528,114, 791,821.03 and 191,110.82

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Solution

The fourth proportional to 528,114, 791,821.03 and 191,110.82 is: 286,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,114 : 791,821.03 = 191,110.82 : x
  2. Step 2: Convert to fraction form
    528,114/791,821.03 = 191,110.82/x
  3. Step 3: Cross multiply
    528,114x = 791,821.03 × 191,110.82
  4. Step 4: Simplify right side
    528,114x = 151,325,566,336.55
  5. Step 5: Solve for x
    x = 151,325,566,336.55/528,114
  6. Step 6: Final answer
    x = 286,539.58

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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.