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Finding the Fourth Proportional to 312,116.58, 430,722.89 and 183,028.77

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Solution

The fourth proportional to 312,116.58, 430,722.89 and 183,028.77 is: 252,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,116.58 : 430,722.89 = 183,028.77 : x
  2. Step 2: Convert to fraction form
    312,116.58/430,722.89 = 183,028.77/x
  3. Step 3: Cross multiply
    312,116.58x = 430,722.89 × 183,028.77
  4. Step 4: Simplify right side
    312,116.58x = 78,834,679,852.40
  5. Step 5: Solve for x
    x = 78,834,679,852.40/312,116.58
  6. Step 6: Final answer
    x = 252,580.88

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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.