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Finding the Fourth Proportional to 619,313.13, 928,971.14 and 170,040.15

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Solution

The fourth proportional to 619,313.13, 928,971.14 and 170,040.15 is: 255,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,313.13 : 928,971.14 = 170,040.15 : x
  2. Step 2: Convert to fraction form
    619,313.13/928,971.14 = 170,040.15/x
  3. Step 3: Cross multiply
    619,313.13x = 928,971.14 × 170,040.15
  4. Step 4: Simplify right side
    619,313.13x = 157,962,391,991.27
  5. Step 5: Solve for x
    x = 157,962,391,991.27/619,313.13
  6. Step 6: Final answer
    x = 255,060.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.