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Finding the Fourth Proportional to 718,750.76, 1,078,790.14 and 364,014.12

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Solution

The fourth proportional to 718,750.76, 1,078,790.14 and 364,014.12 is: 546,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,750.76 : 1,078,790.14 = 364,014.12 : x
  2. Step 2: Convert to fraction form
    718,750.76/1,078,790.14 = 364,014.12/x
  3. Step 3: Cross multiply
    718,750.76x = 1,078,790.14 × 364,014.12
  4. Step 4: Simplify right side
    718,750.76x = 392,694,843,476.78
  5. Step 5: Solve for x
    x = 392,694,843,476.78/718,750.76
  6. Step 6: Final answer
    x = 546,357.47

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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.