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Finding the Fourth Proportional to 567,129.02, 782,655.78 and 325,455.80

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Solution

The fourth proportional to 567,129.02, 782,655.78 and 325,455.80 is: 449,139.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,129.02 : 782,655.78 = 325,455.80 : x
  2. Step 2: Convert to fraction form
    567,129.02/782,655.78 = 325,455.80/x
  3. Step 3: Cross multiply
    567,129.02x = 782,655.78 × 325,455.80
  4. Step 4: Simplify right side
    567,129.02x = 254,719,859,091.25
  5. Step 5: Solve for x
    x = 254,719,859,091.25/567,129.02
  6. Step 6: Final answer
    x = 449,139.18

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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.