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Finding the Fourth Proportional to 724,813.94, 1,000,692.76 and 467,134.77

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Solution

The fourth proportional to 724,813.94, 1,000,692.76 and 467,134.77 is: 644,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,813.94 : 1,000,692.76 = 467,134.77 : x
  2. Step 2: Convert to fraction form
    724,813.94/1,000,692.76 = 467,134.77/x
  3. Step 3: Cross multiply
    724,813.94x = 1,000,692.76 × 467,134.77
  4. Step 4: Simplify right side
    724,813.94x = 467,458,381,115.43
  5. Step 5: Solve for x
    x = 467,458,381,115.43/724,813.94
  6. Step 6: Final answer
    x = 644,935.69

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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.