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Finding the Fourth Proportional to 369,759.47, 510,266.40 and 199,993.19

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Solution

The fourth proportional to 369,759.47, 510,266.40 and 199,993.19 is: 275,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,759.47 : 510,266.40 = 199,993.19 : x
  2. Step 2: Convert to fraction form
    369,759.47/510,266.40 = 199,993.19/x
  3. Step 3: Cross multiply
    369,759.47x = 510,266.40 × 199,993.19
  4. Step 4: Simplify right side
    369,759.47x = 102,049,805,085.82
  5. Step 5: Solve for x
    x = 102,049,805,085.82/369,759.47
  6. Step 6: Final answer
    x = 275,989.70

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Half scale
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Double scale
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Similar ratio
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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.