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Finding the Fourth Proportional to 574,699.45, 860,720.57 and 554,770.42

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Solution

The fourth proportional to 574,699.45, 860,720.57 and 554,770.42 is: 830,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,699.45 : 860,720.57 = 554,770.42 : x
  2. Step 2: Convert to fraction form
    574,699.45/860,720.57 = 554,770.42/x
  3. Step 3: Cross multiply
    574,699.45x = 860,720.57 × 554,770.42
  4. Step 4: Simplify right side
    574,699.45x = 477,502,312,121.54
  5. Step 5: Solve for x
    x = 477,502,312,121.54/574,699.45
  6. Step 6: Final answer
    x = 830,873.10

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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.