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Finding the Fourth Proportional to 339,597.55, 509,606.39 and 197,509.51

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Solution

The fourth proportional to 339,597.55, 509,606.39 and 197,509.51 is: 296,386.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,597.55 : 509,606.39 = 197,509.51 : x
  2. Step 2: Convert to fraction form
    339,597.55/509,606.39 = 197,509.51/x
  3. Step 3: Cross multiply
    339,597.55x = 509,606.39 × 197,509.51
  4. Step 4: Simplify right side
    339,597.55x = 100,652,108,381.77
  5. Step 5: Solve for x
    x = 100,652,108,381.77/339,597.55
  6. Step 6: Final answer
    x = 296,386.44

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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.