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Finding the Fourth Proportional to 437,887.20, 656,830.80 and 367,028.40

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Solution

The fourth proportional to 437,887.20, 656,830.80 and 367,028.40 is: 550,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,887.20 : 656,830.80 = 367,028.40 : x
  2. Step 2: Convert to fraction form
    437,887.20/656,830.80 = 367,028.40/x
  3. Step 3: Cross multiply
    437,887.20x = 656,830.80 × 367,028.40
  4. Step 4: Simplify right side
    437,887.20x = 241,075,557,594.72
  5. Step 5: Solve for x
    x = 241,075,557,594.72/437,887.20
  6. Step 6: Final answer
    x = 550,542.60

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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.