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Finding the Fourth Proportional to 350,511.30, 525,766.95 and 210,543.30

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Solution

The fourth proportional to 350,511.30, 525,766.95 and 210,543.30 is: 315,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,511.30 : 525,766.95 = 210,543.30 : x
  2. Step 2: Convert to fraction form
    350,511.30/525,766.95 = 210,543.30/x
  3. Step 3: Cross multiply
    350,511.30x = 525,766.95 × 210,543.30
  4. Step 4: Simplify right side
    350,511.30x = 110,696,708,683.94
  5. Step 5: Solve for x
    x = 110,696,708,683.94/350,511.30
  6. Step 6: Final answer
    x = 315,814.95

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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.