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Finding the Fourth Proportional to 339,683.57, 509,608.88 and 168,985.89

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Solution

The fourth proportional to 339,683.57, 509,608.88 and 168,985.89 is: 253,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,683.57 : 509,608.88 = 168,985.89 : x
  2. Step 2: Convert to fraction form
    339,683.57/509,608.88 = 168,985.89/x
  3. Step 3: Cross multiply
    339,683.57x = 509,608.88 × 168,985.89
  4. Step 4: Simplify right side
    339,683.57x = 86,116,710,561.17
  5. Step 5: Solve for x
    x = 86,116,710,561.17/339,683.57
  6. Step 6: Final answer
    x = 253,520.39

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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.