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Finding the Fourth Proportional to 458,021.79, 632,073.59 and 251,288.84

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Solution

The fourth proportional to 458,021.79, 632,073.59 and 251,288.84 is: 346,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,021.79 : 632,073.59 = 251,288.84 : x
  2. Step 2: Convert to fraction form
    458,021.79/632,073.59 = 251,288.84/x
  3. Step 3: Cross multiply
    458,021.79x = 632,073.59 × 251,288.84
  4. Step 4: Simplify right side
    458,021.79x = 158,833,035,751.26
  5. Step 5: Solve for x
    x = 158,833,035,751.26/458,021.79
  6. Step 6: Final answer
    x = 346,780.52

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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.