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Finding the Fourth Proportional to 291,706.40, 437,559.60 and 247,966.40

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Solution

The fourth proportional to 291,706.40, 437,559.60 and 247,966.40 is: 371,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,706.40 : 437,559.60 = 247,966.40 : x
  2. Step 2: Convert to fraction form
    291,706.40/437,559.60 = 247,966.40/x
  3. Step 3: Cross multiply
    291,706.40x = 437,559.60 × 247,966.40
  4. Step 4: Simplify right side
    291,706.40x = 108,500,078,797.44
  5. Step 5: Solve for x
    x = 108,500,078,797.44/291,706.40
  6. Step 6: Final answer
    x = 371,949.60

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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.