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Finding the Fourth Proportional to 356,415.66, 491,853.60 and 195,276.82

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Solution

The fourth proportional to 356,415.66, 491,853.60 and 195,276.82 is: 269,482.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,415.66 : 491,853.60 = 195,276.82 : x
  2. Step 2: Convert to fraction form
    356,415.66/491,853.60 = 195,276.82/x
  3. Step 3: Cross multiply
    356,415.66x = 491,853.60 × 195,276.82
  4. Step 4: Simplify right side
    356,415.66x = 96,047,606,913.55
  5. Step 5: Solve for x
    x = 96,047,606,913.55/356,415.66
  6. Step 6: Final answer
    x = 269,482.01

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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.