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Finding the Fourth Proportional to 374,782.75, 517,201.82 and 202,700.76

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Solution

The fourth proportional to 374,782.75, 517,201.82 and 202,700.76 is: 279,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,782.75 : 517,201.82 = 202,700.76 : x
  2. Step 2: Convert to fraction form
    374,782.75/517,201.82 = 202,700.76/x
  3. Step 3: Cross multiply
    374,782.75x = 517,201.82 × 202,700.76
  4. Step 4: Simplify right side
    374,782.75x = 104,837,201,987.38
  5. Step 5: Solve for x
    x = 104,837,201,987.38/374,782.75
  6. Step 6: Final answer
    x = 279,727.93

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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.