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Finding the Fourth Proportional to 535,094.15, 738,460.09 and 317,431.69

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Solution

The fourth proportional to 535,094.15, 738,460.09 and 317,431.69 is: 438,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,094.15 : 738,460.09 = 317,431.69 : x
  2. Step 2: Convert to fraction form
    535,094.15/738,460.09 = 317,431.69/x
  3. Step 3: Cross multiply
    535,094.15x = 738,460.09 × 317,431.69
  4. Step 4: Simplify right side
    535,094.15x = 234,410,631,726.52
  5. Step 5: Solve for x
    x = 234,410,631,726.52/535,094.15
  6. Step 6: Final answer
    x = 438,073.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.