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Finding the Fourth Proportional to 317,248.85, 437,652.51 and 189,899.84

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Solution

The fourth proportional to 317,248.85, 437,652.51 and 189,899.84 is: 261,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,248.85 : 437,652.51 = 189,899.84 : x
  2. Step 2: Convert to fraction form
    317,248.85/437,652.51 = 189,899.84/x
  3. Step 3: Cross multiply
    317,248.85x = 437,652.51 × 189,899.84
  4. Step 4: Simplify right side
    317,248.85x = 83,110,141,624.60
  5. Step 5: Solve for x
    x = 83,110,141,624.60/317,248.85
  6. Step 6: Final answer
    x = 261,971.45

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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.