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Finding the Fourth Proportional to 339,033.68, 508,527.96 and 139,302.32

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Solution

The fourth proportional to 339,033.68, 508,527.96 and 139,302.32 is: 208,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,033.68 : 508,527.96 = 139,302.32 : x
  2. Step 2: Convert to fraction form
    339,033.68/508,527.96 = 139,302.32/x
  3. Step 3: Cross multiply
    339,033.68x = 508,527.96 × 139,302.32
  4. Step 4: Simplify right side
    339,033.68x = 70,839,124,612.87
  5. Step 5: Solve for x
    x = 70,839,124,612.87/339,033.68
  6. Step 6: Final answer
    x = 208,944.21

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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.