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Finding the Fourth Proportional to 536,811.90, 804,526.65 and 411,531.90

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Solution

The fourth proportional to 536,811.90, 804,526.65 and 411,531.90 is: 616,767.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,811.90 : 804,526.65 = 411,531.90 : x
  2. Step 2: Convert to fraction form
    536,811.90/804,526.65 = 411,531.90/x
  3. Step 3: Cross multiply
    536,811.90x = 804,526.65 × 411,531.90
  4. Step 4: Simplify right side
    536,811.90x = 331,088,380,875.14
  5. Step 5: Solve for x
    x = 331,088,380,875.14/536,811.90
  6. Step 6: Final answer
    x = 616,767.96

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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.