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Finding the Fourth Proportional to 245,643.20, 368,464.80 and 226,980.80

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Solution

The fourth proportional to 245,643.20, 368,464.80 and 226,980.80 is: 340,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,643.20 : 368,464.80 = 226,980.80 : x
  2. Step 2: Convert to fraction form
    245,643.20/368,464.80 = 226,980.80/x
  3. Step 3: Cross multiply
    245,643.20x = 368,464.80 × 226,980.80
  4. Step 4: Simplify right side
    245,643.20x = 83,634,435,075.84
  5. Step 5: Solve for x
    x = 83,634,435,075.84/245,643.20
  6. Step 6: Final answer
    x = 340,471.20

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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.