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Finding the Fourth Proportional to 546,836.99, 754,703.25 and 317,345

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Solution

The fourth proportional to 546,836.99, 754,703.25 and 317,345 is: 437,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,836.99 : 754,703.25 = 317,345 : x
  2. Step 2: Convert to fraction form
    546,836.99/754,703.25 = 317,345/x
  3. Step 3: Cross multiply
    546,836.99x = 754,703.25 × 317,345
  4. Step 4: Simplify right side
    546,836.99x = 239,501,302,871.25
  5. Step 5: Solve for x
    x = 239,501,302,871.25/546,836.99
  6. Step 6: Final answer
    x = 437,975.68

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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.