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Finding the Fourth Proportional to 650,978.60, 976,467.90 and 546,002.60

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Solution

The fourth proportional to 650,978.60, 976,467.90 and 546,002.60 is: 819,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,978.60 : 976,467.90 = 546,002.60 : x
  2. Step 2: Convert to fraction form
    650,978.60/976,467.90 = 546,002.60/x
  3. Step 3: Cross multiply
    650,978.60x = 976,467.90 × 546,002.60
  4. Step 4: Simplify right side
    650,978.60x = 533,154,012,216.54
  5. Step 5: Solve for x
    x = 533,154,012,216.54/650,978.60
  6. Step 6: Final answer
    x = 819,003.90

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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.