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Finding the Fourth Proportional to 524,763.80, 788,895.30 and 447,781.40

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Solution

The fourth proportional to 524,763.80, 788,895.30 and 447,781.40 is: 673,165.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,763.80 : 788,895.30 = 447,781.40 : x
  2. Step 2: Convert to fraction form
    524,763.80/788,895.30 = 447,781.40/x
  3. Step 3: Cross multiply
    524,763.80x = 788,895.30 × 447,781.40
  4. Step 4: Simplify right side
    524,763.80x = 353,252,641,887.42
  5. Step 5: Solve for x
    x = 353,252,641,887.42/524,763.80
  6. Step 6: Final answer
    x = 673,165.04

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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.