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Finding the Fourth Proportional to 297,315.40, 445,973.10 and 262,323.40

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Solution

The fourth proportional to 297,315.40, 445,973.10 and 262,323.40 is: 393,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,315.40 : 445,973.10 = 262,323.40 : x
  2. Step 2: Convert to fraction form
    297,315.40/445,973.10 = 262,323.40/x
  3. Step 3: Cross multiply
    297,315.40x = 445,973.10 × 262,323.40
  4. Step 4: Simplify right side
    297,315.40x = 116,989,179,900.54
  5. Step 5: Solve for x
    x = 116,989,179,900.54/297,315.40
  6. Step 6: Final answer
    x = 393,485.10

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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.