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Finding the Fourth Proportional to 771,891.85, 1,064,818.87 and 526,692.70

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Solution

The fourth proportional to 771,891.85, 1,064,818.87 and 526,692.70 is: 726,568.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,891.85 : 1,064,818.87 = 526,692.70 : x
  2. Step 2: Convert to fraction form
    771,891.85/1,064,818.87 = 526,692.70/x
  3. Step 3: Cross multiply
    771,891.85x = 1,064,818.87 × 526,692.70
  4. Step 4: Simplify right side
    771,891.85x = 560,832,325,651.25
  5. Step 5: Solve for x
    x = 560,832,325,651.25/771,891.85
  6. Step 6: Final answer
    x = 726,568.53

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Double scale
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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.