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Finding the Fourth Proportional to 873,817.14, 1,311,235.20 and 368,347.20

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Solution

The fourth proportional to 873,817.14, 1,311,235.20 and 368,347.20 is: 552,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,817.14 : 1,311,235.20 = 368,347.20 : x
  2. Step 2: Convert to fraction form
    873,817.14/1,311,235.20 = 368,347.20/x
  3. Step 3: Cross multiply
    873,817.14x = 1,311,235.20 × 368,347.20
  4. Step 4: Simplify right side
    873,817.14x = 482,989,814,461.44
  5. Step 5: Solve for x
    x = 482,989,814,461.44/873,817.14
  6. Step 6: Final answer
    x = 552,735.57

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1.5x scale

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.