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Finding the Fourth Proportional to 350,817.39, 484,349.36 and 243,349.83

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Solution

The fourth proportional to 350,817.39, 484,349.36 and 243,349.83 is: 335,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,817.39 : 484,349.36 = 243,349.83 : x
  2. Step 2: Convert to fraction form
    350,817.39/484,349.36 = 243,349.83/x
  3. Step 3: Cross multiply
    350,817.39x = 484,349.36 × 243,349.83
  4. Step 4: Simplify right side
    350,817.39x = 117,866,333,199.86
  5. Step 5: Solve for x
    x = 117,866,333,199.86/350,817.39
  6. Step 6: Final answer
    x = 335,976.31

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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.