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Finding the Fourth Proportional to 458,678.11, 632,973.34 and 251,950.57

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Solution

The fourth proportional to 458,678.11, 632,973.34 and 251,950.57 is: 347,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,678.11 : 632,973.34 = 251,950.57 : x
  2. Step 2: Convert to fraction form
    458,678.11/632,973.34 = 251,950.57/x
  3. Step 3: Cross multiply
    458,678.11x = 632,973.34 × 251,950.57
  4. Step 4: Simplify right side
    458,678.11x = 159,477,993,807.80
  5. Step 5: Solve for x
    x = 159,477,993,807.80/458,678.11
  6. Step 6: Final answer
    x = 347,690.44

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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.