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Finding the Fourth Proportional to 448,561.80, 672,842.70 and 282,673.80

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Solution

The fourth proportional to 448,561.80, 672,842.70 and 282,673.80 is: 424,010.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,561.80 : 672,842.70 = 282,673.80 : x
  2. Step 2: Convert to fraction form
    448,561.80/672,842.70 = 282,673.80/x
  3. Step 3: Cross multiply
    448,561.80x = 672,842.70 × 282,673.80
  4. Step 4: Simplify right side
    448,561.80x = 190,195,002,811.26
  5. Step 5: Solve for x
    x = 190,195,002,811.26/448,561.80
  6. Step 6: Final answer
    x = 424,010.70

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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.