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Finding the Fourth Proportional to 533,378.40, 798,949.80 and 249,311.40

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Solution

The fourth proportional to 533,378.40, 798,949.80 and 249,311.40 is: 373,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,378.40 : 798,949.80 = 249,311.40 : x
  2. Step 2: Convert to fraction form
    533,378.40/798,949.80 = 249,311.40/x
  3. Step 3: Cross multiply
    533,378.40x = 798,949.80 × 249,311.40
  4. Step 4: Simplify right side
    533,378.40x = 199,187,293,167.72
  5. Step 5: Solve for x
    x = 199,187,293,167.72/533,378.40
  6. Step 6: Final answer
    x = 373,444.62

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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.