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Finding the Fourth Proportional to 528,692.48, 793,194.24 and 212,986.88

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Solution

The fourth proportional to 528,692.48, 793,194.24 and 212,986.88 is: 319,542.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,692.48 : 793,194.24 = 212,986.88 : x
  2. Step 2: Convert to fraction form
    528,692.48/793,194.24 = 212,986.88/x
  3. Step 3: Cross multiply
    528,692.48x = 793,194.24 × 212,986.88
  4. Step 4: Simplify right side
    528,692.48x = 168,939,966,411.57
  5. Step 5: Solve for x
    x = 168,939,966,411.57/528,692.48
  6. Step 6: Final answer
    x = 319,542.97

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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.