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Finding the Fourth Proportional to 519,349.11, 778,945.56 and 164,316.93

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Solution

The fourth proportional to 519,349.11, 778,945.56 and 164,316.93 is: 246,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,349.11 : 778,945.56 = 164,316.93 : x
  2. Step 2: Convert to fraction form
    519,349.11/778,945.56 = 164,316.93/x
  3. Step 3: Cross multiply
    519,349.11x = 778,945.56 × 164,316.93
  4. Step 4: Simplify right side
    519,349.11x = 127,993,943,056.33
  5. Step 5: Solve for x
    x = 127,993,943,056.33/519,349.11
  6. Step 6: Final answer
    x = 246,450.68

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1.5x scale

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.