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Finding the Fourth Proportional to 586,625.27, 809,542.80 and 318,353.27

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Solution

The fourth proportional to 586,625.27, 809,542.80 and 318,353.27 is: 439,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,625.27 : 809,542.80 = 318,353.27 : x
  2. Step 2: Convert to fraction form
    586,625.27/809,542.80 = 318,353.27/x
  3. Step 3: Cross multiply
    586,625.27x = 809,542.80 × 318,353.27
  4. Step 4: Simplify right side
    586,625.27x = 257,720,593,537.24
  5. Step 5: Solve for x
    x = 257,720,593,537.24/586,625.27
  6. Step 6: Final answer
    x = 439,327.47

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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.