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Finding the Fourth Proportional to 279,759.42, 385,952.45 and 194,925.69

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Solution

The fourth proportional to 279,759.42, 385,952.45 and 194,925.69 is: 268,916.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,759.42 : 385,952.45 = 194,925.69 : x
  2. Step 2: Convert to fraction form
    279,759.42/385,952.45 = 194,925.69/x
  3. Step 3: Cross multiply
    279,759.42x = 385,952.45 × 194,925.69
  4. Step 4: Simplify right side
    279,759.42x = 75,232,046,648.81
  5. Step 5: Solve for x
    x = 75,232,046,648.81/279,759.42
  6. Step 6: Final answer
    x = 268,916.94

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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.