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Finding the Fourth Proportional to 411,543.59, 617,426.31 and 171,577.73

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Solution

The fourth proportional to 411,543.59, 617,426.31 and 171,577.73 is: 257,412.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,543.59 : 617,426.31 = 171,577.73 : x
  2. Step 2: Convert to fraction form
    411,543.59/617,426.31 = 171,577.73/x
  3. Step 3: Cross multiply
    411,543.59x = 617,426.31 × 171,577.73
  4. Step 4: Simplify right side
    411,543.59x = 105,936,604,712.08
  5. Step 5: Solve for x
    x = 105,936,604,712.08/411,543.59
  6. Step 6: Final answer
    x = 257,412.84

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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.