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Finding the Fourth Proportional to 528,692.94, 793,826.70 and 213,764.94

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Solution

The fourth proportional to 528,692.94, 793,826.70 and 213,764.94 is: 320,965.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,692.94 : 793,826.70 = 213,764.94 : x
  2. Step 2: Convert to fraction form
    528,692.94/793,826.70 = 213,764.94/x
  3. Step 3: Cross multiply
    528,692.94x = 793,826.70 × 213,764.94
  4. Step 4: Simplify right side
    528,692.94x = 169,692,316,895.90
  5. Step 5: Solve for x
    x = 169,692,316,895.90/528,692.94
  6. Step 6: Final answer
    x = 320,965.73

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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.