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Finding the Fourth Proportional to 416,619.80, 624,929.70 and 366,756.20

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Solution

The fourth proportional to 416,619.80, 624,929.70 and 366,756.20 is: 550,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,619.80 : 624,929.70 = 366,756.20 : x
  2. Step 2: Convert to fraction form
    416,619.80/624,929.70 = 366,756.20/x
  3. Step 3: Cross multiply
    416,619.80x = 624,929.70 × 366,756.20
  4. Step 4: Simplify right side
    416,619.80x = 229,196,842,039.14
  5. Step 5: Solve for x
    x = 229,196,842,039.14/416,619.80
  6. Step 6: Final answer
    x = 550,134.30

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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.