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Finding the Fourth Proportional to 586,673.37, 809,609.58 and 318,401.37

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Solution

The fourth proportional to 586,673.37, 809,609.58 and 318,401.37 is: 439,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,673.37 : 809,609.58 = 318,401.37 : x
  2. Step 2: Convert to fraction form
    586,673.37/809,609.58 = 318,401.37/x
  3. Step 3: Cross multiply
    586,673.37x = 809,609.58 × 318,401.37
  4. Step 4: Simplify right side
    586,673.37x = 257,780,799,437.13
  5. Step 5: Solve for x
    x = 257,780,799,437.13/586,673.37
  6. Step 6: Final answer
    x = 439,394.07

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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.