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Finding the Fourth Proportional to 314,650.51, 434,220.68 and 178,687.28

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Solution

The fourth proportional to 314,650.51, 434,220.68 and 178,687.28 is: 246,590.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,650.51 : 434,220.68 = 178,687.28 : x
  2. Step 2: Convert to fraction form
    314,650.51/434,220.68 = 178,687.28/x
  3. Step 3: Cross multiply
    314,650.51x = 434,220.68 × 178,687.28
  4. Step 4: Simplify right side
    314,650.51x = 77,589,713,761.22
  5. Step 5: Solve for x
    x = 77,589,713,761.22/314,650.51
  6. Step 6: Final answer
    x = 246,590.14

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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.