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Finding the Fourth Proportional to 573,656, 860,795.04 and 278,168

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Solution

The fourth proportional to 573,656, 860,795.04 and 278,168 is: 417,402.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,656 : 860,795.04 = 278,168 : x
  2. Step 2: Convert to fraction form
    573,656/860,795.04 = 278,168/x
  3. Step 3: Cross multiply
    573,656x = 860,795.04 × 278,168
  4. Step 4: Simplify right side
    573,656x = 239,445,634,686.72
  5. Step 5: Solve for x
    x = 239,445,634,686.72/573,656
  6. Step 6: Final answer
    x = 417,402.82

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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.