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Finding the Fourth Proportional to 647,952.60, 971,928.90 and 368,016.60

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Solution

The fourth proportional to 647,952.60, 971,928.90 and 368,016.60 is: 552,024.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,952.60 : 971,928.90 = 368,016.60 : x
  2. Step 2: Convert to fraction form
    647,952.60/971,928.90 = 368,016.60/x
  3. Step 3: Cross multiply
    647,952.60x = 971,928.90 × 368,016.60
  4. Step 4: Simplify right side
    647,952.60x = 357,685,969,219.74
  5. Step 5: Solve for x
    x = 357,685,969,219.74/647,952.60
  6. Step 6: Final answer
    x = 552,024.90

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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.