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Finding the Fourth Proportional to 570,381.53, 855,546.34 and 191,273.12

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Solution

The fourth proportional to 570,381.53, 855,546.34 and 191,273.12 is: 286,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,381.53 : 855,546.34 = 191,273.12 : x
  2. Step 2: Convert to fraction form
    570,381.53/855,546.34 = 191,273.12/x
  3. Step 3: Cross multiply
    570,381.53x = 855,546.34 × 191,273.12
  4. Step 4: Simplify right side
    570,381.53x = 163,643,013,000.47
  5. Step 5: Solve for x
    x = 163,643,013,000.47/570,381.53
  6. Step 6: Final answer
    x = 286,900.97

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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.