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Finding the Fourth Proportional to 471,725.35, 710,738.90 and 426,804.29

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Solution

The fourth proportional to 471,725.35, 710,738.90 and 426,804.29 is: 643,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,725.35 : 710,738.90 = 426,804.29 : x
  2. Step 2: Convert to fraction form
    471,725.35/710,738.90 = 426,804.29/x
  3. Step 3: Cross multiply
    471,725.35x = 710,738.90 × 426,804.29
  4. Step 4: Simplify right side
    471,725.35x = 303,346,411,589.88
  5. Step 5: Solve for x
    x = 303,346,411,589.88/471,725.35
  6. Step 6: Final answer
    x = 643,057.26

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.