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Finding the Fourth Proportional to 234,015.90, 328,451.70 and 234,015.90

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Solution

The fourth proportional to 234,015.90, 328,451.70 and 234,015.90 is: 328,451.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,015.90 : 328,451.70 = 234,015.90 : x
  2. Step 2: Convert to fraction form
    234,015.90/328,451.70 = 234,015.90/x
  3. Step 3: Cross multiply
    234,015.90x = 328,451.70 × 234,015.90
  4. Step 4: Simplify right side
    234,015.90x = 76,862,920,182.03
  5. Step 5: Solve for x
    x = 76,862,920,182.03/234,015.90
  6. Step 6: Final answer
    x = 328,451.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.