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Finding the Fourth Proportional to 501,613.92, 692,465.36 and 317,944.26

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Solution

The fourth proportional to 501,613.92, 692,465.36 and 317,944.26 is: 438,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,613.92 : 692,465.36 = 317,944.26 : x
  2. Step 2: Convert to fraction form
    501,613.92/692,465.36 = 317,944.26/x
  3. Step 3: Cross multiply
    501,613.92x = 692,465.36 × 317,944.26
  4. Step 4: Simplify right side
    501,613.92x = 220,165,384,871.11
  5. Step 5: Solve for x
    x = 220,165,384,871.11/501,613.92
  6. Step 6: Final answer
    x = 438,914.03

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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.