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Finding the Fourth Proportional to 585,012.25, 877,518.38 and 141,780.25

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Solution

The fourth proportional to 585,012.25, 877,518.38 and 141,780.25 is: 212,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,012.25 : 877,518.38 = 141,780.25 : x
  2. Step 2: Convert to fraction form
    585,012.25/877,518.38 = 141,780.25/x
  3. Step 3: Cross multiply
    585,012.25x = 877,518.38 × 141,780.25
  4. Step 4: Simplify right side
    585,012.25x = 124,414,775,296.00
  5. Step 5: Solve for x
    x = 124,414,775,296.00/585,012.25
  6. Step 6: Final answer
    x = 212,670.38

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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.