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Finding the Fourth Proportional to 478,188.69, 715,511.37 and 351,922.24

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Solution

The fourth proportional to 478,188.69, 715,511.37 and 351,922.24 is: 526,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,188.69 : 715,511.37 = 351,922.24 : x
  2. Step 2: Convert to fraction form
    478,188.69/715,511.37 = 351,922.24/x
  3. Step 3: Cross multiply
    478,188.69x = 715,511.37 × 351,922.24
  4. Step 4: Simplify right side
    478,188.69x = 251,804,364,075.87
  5. Step 5: Solve for x
    x = 251,804,364,075.87/478,188.69
  6. Step 6: Final answer
    x = 526,579.51

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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.