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Finding the Fourth Proportional to 413,526.90, 620,398.35 and 133,050.90

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Solution

The fourth proportional to 413,526.90, 620,398.35 and 133,050.90 is: 199,611.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,526.90 : 620,398.35 = 133,050.90 : x
  2. Step 2: Convert to fraction form
    413,526.90/620,398.35 = 133,050.90/x
  3. Step 3: Cross multiply
    413,526.90x = 620,398.35 × 133,050.90
  4. Step 4: Simplify right side
    413,526.90x = 82,544,558,826.02
  5. Step 5: Solve for x
    x = 82,544,558,826.02/413,526.90
  6. Step 6: Final answer
    x = 199,611.10

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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.