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Finding the Fourth Proportional to 411,565.20, 617,347.80 and 366,950.40

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Solution

The fourth proportional to 411,565.20, 617,347.80 and 366,950.40 is: 550,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,565.20 : 617,347.80 = 366,950.40 : x
  2. Step 2: Convert to fraction form
    411,565.20/617,347.80 = 366,950.40/x
  3. Step 3: Cross multiply
    411,565.20x = 617,347.80 × 366,950.40
  4. Step 4: Simplify right side
    411,565.20x = 226,536,022,149.12
  5. Step 5: Solve for x
    x = 226,536,022,149.12/411,565.20
  6. Step 6: Final answer
    x = 550,425.60

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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.