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Finding the Fourth Proportional to 599,785.80, 900,070.30 and 220,710.35

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Solution

The fourth proportional to 599,785.80, 900,070.30 and 220,710.35 is: 331,209.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,785.80 : 900,070.30 = 220,710.35 : x
  2. Step 2: Convert to fraction form
    599,785.80/900,070.30 = 220,710.35/x
  3. Step 3: Cross multiply
    599,785.80x = 900,070.30 × 220,710.35
  4. Step 4: Simplify right side
    599,785.80x = 198,654,830,937.61
  5. Step 5: Solve for x
    x = 198,654,830,937.61/599,785.80
  6. Step 6: Final answer
    x = 331,209.63

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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.