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Finding the Fourth Proportional to 577,999.59, 866,211.53 and 278,458.35

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Solution

The fourth proportional to 577,999.59, 866,211.53 and 278,458.35 is: 417,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,999.59 : 866,211.53 = 278,458.35 : x
  2. Step 2: Convert to fraction form
    577,999.59/866,211.53 = 278,458.35/x
  3. Step 3: Cross multiply
    577,999.59x = 866,211.53 × 278,458.35
  4. Step 4: Simplify right side
    577,999.59x = 241,203,832,002.48
  5. Step 5: Solve for x
    x = 241,203,832,002.48/577,999.59
  6. Step 6: Final answer
    x = 417,307.96

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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.