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Finding the Fourth Proportional to 411,528.85, 576,534.05 and 411,528.85

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Solution

The fourth proportional to 411,528.85, 576,534.05 and 411,528.85 is: 576,534.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,528.85 : 576,534.05 = 411,528.85 : x
  2. Step 2: Convert to fraction form
    411,528.85/576,534.05 = 411,528.85/x
  3. Step 3: Cross multiply
    411,528.85x = 576,534.05 × 411,528.85
  4. Step 4: Simplify right side
    411,528.85x = 237,260,394,582.34
  5. Step 5: Solve for x
    x = 237,260,394,582.34/411,528.85
  6. Step 6: Final answer
    x = 576,534.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.