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Finding the Fourth Proportional to 411,533.70, 617,300.55 and 366,918.90

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Solution

The fourth proportional to 411,533.70, 617,300.55 and 366,918.90 is: 550,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,533.70 : 617,300.55 = 366,918.90 : x
  2. Step 2: Convert to fraction form
    411,533.70/617,300.55 = 366,918.90/x
  3. Step 3: Cross multiply
    411,533.70x = 617,300.55 × 366,918.90
  4. Step 4: Simplify right side
    411,533.70x = 226,499,238,775.40
  5. Step 5: Solve for x
    x = 226,499,238,775.40/411,533.70
  6. Step 6: Final answer
    x = 550,378.35

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Similar ratio
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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.