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Finding the Fourth Proportional to 266,886.59, 399,886.99 and 187,834.74

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Solution

The fourth proportional to 266,886.59, 399,886.99 and 187,834.74 is: 281,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,886.59 : 399,886.99 = 187,834.74 : x
  2. Step 2: Convert to fraction form
    266,886.59/399,886.99 = 187,834.74/x
  3. Step 3: Cross multiply
    266,886.59x = 399,886.99 × 187,834.74
  4. Step 4: Simplify right side
    266,886.59x = 75,112,666,826.87
  5. Step 5: Solve for x
    x = 75,112,666,826.87/266,886.59
  6. Step 6: Final answer
    x = 281,440.40

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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.