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Finding the Fourth Proportional to 473,218.80, 710,346.60 and 263,266.80

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Solution

The fourth proportional to 473,218.80, 710,346.60 and 263,266.80 is: 395,188.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,218.80 : 710,346.60 = 263,266.80 : x
  2. Step 2: Convert to fraction form
    473,218.80/710,346.60 = 263,266.80/x
  3. Step 3: Cross multiply
    473,218.80x = 710,346.60 × 263,266.80
  4. Step 4: Simplify right side
    473,218.80x = 187,010,676,272.88
  5. Step 5: Solve for x
    x = 187,010,676,272.88/473,218.80
  6. Step 6: Final answer
    x = 395,188.60

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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.