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Finding the Fourth Proportional to 446,951.13, 616,804.65 and 243,015.81

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Solution

The fourth proportional to 446,951.13, 616,804.65 and 243,015.81 is: 335,368.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,951.13 : 616,804.65 = 243,015.81 : x
  2. Step 2: Convert to fraction form
    446,951.13/616,804.65 = 243,015.81/x
  3. Step 3: Cross multiply
    446,951.13x = 616,804.65 × 243,015.81
  4. Step 4: Simplify right side
    446,951.13x = 149,893,281,631.52
  5. Step 5: Solve for x
    x = 149,893,281,631.52/446,951.13
  6. Step 6: Final answer
    x = 335,368.39

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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.