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Finding the Fourth Proportional to 526,843.88, 790,237.98 and 147,790.76

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Solution

The fourth proportional to 526,843.88, 790,237.98 and 147,790.76 is: 221,678.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,843.88 : 790,237.98 = 147,790.76 : x
  2. Step 2: Convert to fraction form
    526,843.88/790,237.98 = 147,790.76/x
  3. Step 3: Cross multiply
    526,843.88x = 790,237.98 × 147,790.76
  4. Step 4: Simplify right side
    526,843.88x = 116,789,871,645.07
  5. Step 5: Solve for x
    x = 116,789,871,645.07/526,843.88
  6. Step 6: Final answer
    x = 221,678.33

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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.