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Finding the Fourth Proportional to 449,969.13, 674,953.74 and 310,613.49

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Solution

The fourth proportional to 449,969.13, 674,953.74 and 310,613.49 is: 465,920.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,969.13 : 674,953.74 = 310,613.49 : x
  2. Step 2: Convert to fraction form
    449,969.13/674,953.74 = 310,613.49/x
  3. Step 3: Cross multiply
    449,969.13x = 674,953.74 × 310,613.49
  4. Step 4: Simplify right side
    449,969.13x = 209,649,736,769.95
  5. Step 5: Solve for x
    x = 209,649,736,769.95/449,969.13
  6. Step 6: Final answer
    x = 465,920.27

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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.