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Finding the Fourth Proportional to 526,919.94, 790,381.80 and 127,559.94

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Solution

The fourth proportional to 526,919.94, 790,381.80 and 127,559.94 is: 191,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,919.94 : 790,381.80 = 127,559.94 : x
  2. Step 2: Convert to fraction form
    526,919.94/790,381.80 = 127,559.94/x
  3. Step 3: Cross multiply
    526,919.94x = 790,381.80 × 127,559.94
  4. Step 4: Simplify right side
    526,919.94x = 100,821,054,985.09
  5. Step 5: Solve for x
    x = 100,821,054,985.09/526,919.94
  6. Step 6: Final answer
    x = 191,340.37

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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.