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Finding the Fourth Proportional to 519,086.88, 778,552.56 and 430,907.04

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Solution

The fourth proportional to 519,086.88, 778,552.56 and 430,907.04 is: 646,296.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,086.88 : 778,552.56 = 430,907.04 : x
  2. Step 2: Convert to fraction form
    519,086.88/778,552.56 = 430,907.04/x
  3. Step 3: Cross multiply
    519,086.88x = 778,552.56 × 430,907.04
  4. Step 4: Simplify right side
    519,086.88x = 335,483,779,114.02
  5. Step 5: Solve for x
    x = 335,483,779,114.02/519,086.88
  6. Step 6: Final answer
    x = 646,296.01

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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.