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Finding the Fourth Proportional to 519,171.76, 716,321.64 and 304,196.32

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Solution

The fourth proportional to 519,171.76, 716,321.64 and 304,196.32 is: 419,711.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,171.76 : 716,321.64 = 304,196.32 : x
  2. Step 2: Convert to fraction form
    519,171.76/716,321.64 = 304,196.32/x
  3. Step 3: Cross multiply
    519,171.76x = 716,321.64 × 304,196.32
  4. Step 4: Simplify right side
    519,171.76x = 217,902,406,824.37
  5. Step 5: Solve for x
    x = 217,902,406,824.37/519,171.76
  6. Step 6: Final answer
    x = 419,711.59

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1.5x scale

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.