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Finding the Fourth Proportional to 545,706.33, 753,097.42 and 303,988.84

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Solution

The fourth proportional to 545,706.33, 753,097.42 and 303,988.84 is: 419,517.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,706.33 : 753,097.42 = 303,988.84 : x
  2. Step 2: Convert to fraction form
    545,706.33/753,097.42 = 303,988.84/x
  3. Step 3: Cross multiply
    545,706.33x = 753,097.42 × 303,988.84
  4. Step 4: Simplify right side
    545,706.33x = 228,933,207,347.31
  5. Step 5: Solve for x
    x = 228,933,207,347.31/545,706.33
  6. Step 6: Final answer
    x = 419,517.23

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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.