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Finding the Fourth Proportional to 477,808.90, 715,872.59 and 449,363.32

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Solution

The fourth proportional to 477,808.90, 715,872.59 and 449,363.32 is: 673,254.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,808.90 : 715,872.59 = 449,363.32 : x
  2. Step 2: Convert to fraction form
    477,808.90/715,872.59 = 449,363.32/x
  3. Step 3: Cross multiply
    477,808.90x = 715,872.59 × 449,363.32
  4. Step 4: Simplify right side
    477,808.90x = 321,686,879,702.90
  5. Step 5: Solve for x
    x = 321,686,879,702.90/477,808.90
  6. Step 6: Final answer
    x = 673,254.27

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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.