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Finding the Fourth Proportional to 370,716.80, 556,098.72 and 130,800.80

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Solution

The fourth proportional to 370,716.80, 556,098.72 and 130,800.80 is: 196,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,716.80 : 556,098.72 = 130,800.80 : x
  2. Step 2: Convert to fraction form
    370,716.80/556,098.72 = 130,800.80/x
  3. Step 3: Cross multiply
    370,716.80x = 556,098.72 × 130,800.80
  4. Step 4: Simplify right side
    370,716.80x = 72,738,157,454.98
  5. Step 5: Solve for x
    x = 72,738,157,454.98/370,716.80
  6. Step 6: Final answer
    x = 196,209.50

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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.