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Finding the Fourth Proportional to 570,121.34, 786,788.44 and 368,917.34

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Solution

The fourth proportional to 570,121.34, 786,788.44 and 368,917.34 is: 509,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,121.34 : 786,788.44 = 368,917.34 : x
  2. Step 2: Convert to fraction form
    570,121.34/786,788.44 = 368,917.34/x
  3. Step 3: Cross multiply
    570,121.34x = 786,788.44 × 368,917.34
  4. Step 4: Simplify right side
    570,121.34x = 290,259,893,571.31
  5. Step 5: Solve for x
    x = 290,259,893,571.31/570,121.34
  6. Step 6: Final answer
    x = 509,119.51

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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.