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Finding the Fourth Proportional to 714,667.68, 986,242.08 and 412,861.68

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Solution

The fourth proportional to 714,667.68, 986,242.08 and 412,861.68 is: 569,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,667.68 : 986,242.08 = 412,861.68 : x
  2. Step 2: Convert to fraction form
    714,667.68/986,242.08 = 412,861.68/x
  3. Step 3: Cross multiply
    714,667.68x = 986,242.08 × 412,861.68
  4. Step 4: Simplify right side
    714,667.68x = 407,181,562,035.49
  5. Step 5: Solve for x
    x = 407,181,562,035.49/714,667.68
  6. Step 6: Final answer
    x = 569,749.51

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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.