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Finding the Fourth Proportional to 515,674.56, 773,220 and 160,583.52

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Solution

The fourth proportional to 515,674.56, 773,220 and 160,583.52 is: 240,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,674.56 : 773,220 = 160,583.52 : x
  2. Step 2: Convert to fraction form
    515,674.56/773,220 = 160,583.52/x
  3. Step 3: Cross multiply
    515,674.56x = 773,220 × 160,583.52
  4. Step 4: Simplify right side
    515,674.56x = 124,166,389,334.40
  5. Step 5: Solve for x
    x = 124,166,389,334.40/515,674.56
  6. Step 6: Final answer
    x = 240,784.40

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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.