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Finding the Fourth Proportional to 402,777.20, 604,252.20 and 122,322.80

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Solution

The fourth proportional to 402,777.20, 604,252.20 and 122,322.80 is: 183,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,777.20 : 604,252.20 = 122,322.80 : x
  2. Step 2: Convert to fraction form
    402,777.20/604,252.20 = 122,322.80/x
  3. Step 3: Cross multiply
    402,777.20x = 604,252.20 × 122,322.80
  4. Step 4: Simplify right side
    402,777.20x = 73,913,821,010.16
  5. Step 5: Solve for x
    x = 73,913,821,010.16/402,777.20
  6. Step 6: Final answer
    x = 183,510.44

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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.