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Finding the Fourth Proportional to 567,423.60, 851,405.76 and 354,133.68

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Solution

The fourth proportional to 567,423.60, 851,405.76 and 354,133.68 is: 531,369.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,423.60 : 851,405.76 = 354,133.68 : x
  2. Step 2: Convert to fraction form
    567,423.60/851,405.76 = 354,133.68/x
  3. Step 3: Cross multiply
    567,423.60x = 851,405.76 × 354,133.68
  4. Step 4: Simplify right side
    567,423.60x = 301,511,454,962.00
  5. Step 5: Solve for x
    x = 301,511,454,962.00/567,423.60
  6. Step 6: Final answer
    x = 531,369.25

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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.