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Finding the Fourth Proportional to 585,012.75, 877,519.14 and 141,780.75

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Solution

The fourth proportional to 585,012.75, 877,519.14 and 141,780.75 is: 212,671.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,012.75 : 877,519.14 = 141,780.75 : x
  2. Step 2: Convert to fraction form
    585,012.75/877,519.14 = 141,780.75/x
  3. Step 3: Cross multiply
    585,012.75x = 877,519.14 × 141,780.75
  4. Step 4: Simplify right side
    585,012.75x = 124,415,321,808.56
  5. Step 5: Solve for x
    x = 124,415,321,808.56/585,012.75
  6. Step 6: Final answer
    x = 212,671.13

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Similar ratio
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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.