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Finding the Fourth Proportional to 358,426.60, 537,713.40 and 299,672.86

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Solution

The fourth proportional to 358,426.60, 537,713.40 and 299,672.86 is: 449,570.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,426.60 : 537,713.40 = 299,672.86 : x
  2. Step 2: Convert to fraction form
    358,426.60/537,713.40 = 299,672.86/x
  3. Step 3: Cross multiply
    358,426.60x = 537,713.40 × 299,672.86
  4. Step 4: Simplify right side
    358,426.60x = 161,138,112,438.32
  5. Step 5: Solve for x
    x = 161,138,112,438.32/358,426.60
  6. Step 6: Final answer
    x = 449,570.74

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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.