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Finding the Fourth Proportional to 368,313.21, 508,267.04 and 207,168.21

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Solution

The fourth proportional to 368,313.21, 508,267.04 and 207,168.21 is: 285,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,313.21 : 508,267.04 = 207,168.21 : x
  2. Step 2: Convert to fraction form
    368,313.21/508,267.04 = 207,168.21/x
  3. Step 3: Cross multiply
    368,313.21x = 508,267.04 × 207,168.21
  4. Step 4: Simplify right side
    368,313.21x = 105,296,771,842.96
  5. Step 5: Solve for x
    x = 105,296,771,842.96/368,313.21
  6. Step 6: Final answer
    x = 285,889.21

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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.