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Finding the Fourth Proportional to 864,666, 1,193,213.76 and 482,684.40

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Solution

The fourth proportional to 864,666, 1,193,213.76 and 482,684.40 is: 666,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,666 : 1,193,213.76 = 482,684.40 : x
  2. Step 2: Convert to fraction form
    864,666/1,193,213.76 = 482,684.40/x
  3. Step 3: Cross multiply
    864,666x = 1,193,213.76 × 482,684.40
  4. Step 4: Simplify right side
    864,666x = 575,945,667,817.34
  5. Step 5: Solve for x
    x = 575,945,667,817.34/864,666
  6. Step 6: Final answer
    x = 666,090.34

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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.