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Finding the Fourth Proportional to 558,830.53, 838,329.63 and 259,341.84

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Solution

The fourth proportional to 558,830.53, 838,329.63 and 259,341.84 is: 389,051.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,830.53 : 838,329.63 = 259,341.84 : x
  2. Step 2: Convert to fraction form
    558,830.53/838,329.63 = 259,341.84/x
  3. Step 3: Cross multiply
    558,830.53x = 838,329.63 × 259,341.84
  4. Step 4: Simplify right side
    558,830.53x = 217,413,948,770.72
  5. Step 5: Solve for x
    x = 217,413,948,770.72/558,830.53
  6. Step 6: Final answer
    x = 389,051.67

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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.