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Finding the Fourth Proportional to 507,748.88, 700,693.45 and 281,408.96

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Solution

The fourth proportional to 507,748.88, 700,693.45 and 281,408.96 is: 388,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,748.88 : 700,693.45 = 281,408.96 : x
  2. Step 2: Convert to fraction form
    507,748.88/700,693.45 = 281,408.96/x
  3. Step 3: Cross multiply
    507,748.88x = 700,693.45 × 281,408.96
  4. Step 4: Simplify right side
    507,748.88x = 197,181,415,043.31
  5. Step 5: Solve for x
    x = 197,181,415,043.31/507,748.88
  6. Step 6: Final answer
    x = 388,344.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.