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Finding the Fourth Proportional to 451,317.61, 677,019.54 and 127,104.89

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Solution

The fourth proportional to 451,317.61, 677,019.54 and 127,104.89 is: 190,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,317.61 : 677,019.54 = 127,104.89 : x
  2. Step 2: Convert to fraction form
    451,317.61/677,019.54 = 127,104.89/x
  3. Step 3: Cross multiply
    451,317.61x = 677,019.54 × 127,104.89
  4. Step 4: Simplify right side
    451,317.61x = 86,052,494,159.55
  5. Step 5: Solve for x
    x = 86,052,494,159.55/451,317.61
  6. Step 6: Final answer
    x = 190,669.48

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1.5x scale

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.