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Finding the Fourth Proportional to 317,055.15, 437,522.36 and 189,800.91

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Solution

The fourth proportional to 317,055.15, 437,522.36 and 189,800.91 is: 261,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,055.15 : 437,522.36 = 189,800.91 : x
  2. Step 2: Convert to fraction form
    317,055.15/437,522.36 = 189,800.91/x
  3. Step 3: Cross multiply
    317,055.15x = 437,522.36 × 189,800.91
  4. Step 4: Simplify right side
    317,055.15x = 83,042,141,124.34
  5. Step 5: Solve for x
    x = 83,042,141,124.34/317,055.15
  6. Step 6: Final answer
    x = 261,917.02

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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.