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Finding the Fourth Proportional to 515,584.52, 711,347.19 and 300,572.36

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Solution

The fourth proportional to 515,584.52, 711,347.19 and 300,572.36 is: 414,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,584.52 : 711,347.19 = 300,572.36 : x
  2. Step 2: Convert to fraction form
    515,584.52/711,347.19 = 300,572.36/x
  3. Step 3: Cross multiply
    515,584.52x = 711,347.19 × 300,572.36
  4. Step 4: Simplify right side
    515,584.52x = 213,811,303,677.67
  5. Step 5: Solve for x
    x = 213,811,303,677.67/515,584.52
  6. Step 6: Final answer
    x = 414,696.90

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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.