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Finding the Fourth Proportional to 866,978.14, 1,300,335.99 and 235,941.16

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Solution

The fourth proportional to 866,978.14, 1,300,335.99 and 235,941.16 is: 353,876.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,978.14 : 1,300,335.99 = 235,941.16 : x
  2. Step 2: Convert to fraction form
    866,978.14/1,300,335.99 = 235,941.16/x
  3. Step 3: Cross multiply
    866,978.14x = 1,300,335.99 × 235,941.16
  4. Step 4: Simplify right side
    866,978.14x = 306,802,781,870.35
  5. Step 5: Solve for x
    x = 306,802,781,870.35/866,978.14
  6. Step 6: Final answer
    x = 353,876.03

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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.