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Finding the Fourth Proportional to 936,333, 1,403,909 and 515,904.12

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Solution

The fourth proportional to 936,333, 1,403,909 and 515,904.12 is: 773,530.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,333 : 1,403,909 = 515,904.12 : x
  2. Step 2: Convert to fraction form
    936,333/1,403,909 = 515,904.12/x
  3. Step 3: Cross multiply
    936,333x = 1,403,909 × 515,904.12
  4. Step 4: Simplify right side
    936,333x = 724,282,437,205.08
  5. Step 5: Solve for x
    x = 724,282,437,205.08/936,333
  6. Step 6: Final answer
    x = 773,530.82

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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.