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Finding the Fourth Proportional to 411,539.20, 617,308.80 and 366,924.40

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Solution

The fourth proportional to 411,539.20, 617,308.80 and 366,924.40 is: 550,386.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,539.20 : 617,308.80 = 366,924.40 : x
  2. Step 2: Convert to fraction form
    411,539.20/617,308.80 = 366,924.40/x
  3. Step 3: Cross multiply
    411,539.20x = 617,308.80 × 366,924.40
  4. Step 4: Simplify right side
    411,539.20x = 226,505,661,054.72
  5. Step 5: Solve for x
    x = 226,505,661,054.72/411,539.20
  6. Step 6: Final answer
    x = 550,386.60

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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.