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Finding the Fourth Proportional to 339,685.83, 509,612.25 and 168,988.14

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Solution

The fourth proportional to 339,685.83, 509,612.25 and 168,988.14 is: 253,523.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,685.83 : 509,612.25 = 168,988.14 : x
  2. Step 2: Convert to fraction form
    339,685.83/509,612.25 = 168,988.14/x
  3. Step 3: Cross multiply
    339,685.83x = 509,612.25 × 168,988.14
  4. Step 4: Simplify right side
    339,685.83x = 86,118,426,248.72
  5. Step 5: Solve for x
    x = 86,118,426,248.72/339,685.83
  6. Step 6: Final answer
    x = 253,523.75

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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.