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Finding the Fourth Proportional to 465,457.16, 642,329.52 and 271,902.80

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Solution

The fourth proportional to 465,457.16, 642,329.52 and 271,902.80 is: 375,225.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,457.16 : 642,329.52 = 271,902.80 : x
  2. Step 2: Convert to fraction form
    465,457.16/642,329.52 = 271,902.80/x
  3. Step 3: Cross multiply
    465,457.16x = 642,329.52 × 271,902.80
  4. Step 4: Simplify right side
    465,457.16x = 174,651,195,010.66
  5. Step 5: Solve for x
    x = 174,651,195,010.66/465,457.16
  6. Step 6: Final answer
    x = 375,225.07

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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.