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Finding the Fourth Proportional to 535,692.15, 739,264.32 and 293,997.20

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Solution

The fourth proportional to 535,692.15, 739,264.32 and 293,997.20 is: 405,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,692.15 : 739,264.32 = 293,997.20 : x
  2. Step 2: Convert to fraction form
    535,692.15/739,264.32 = 293,997.20/x
  3. Step 3: Cross multiply
    535,692.15x = 739,264.32 × 293,997.20
  4. Step 4: Simplify right side
    535,692.15x = 217,341,636,443.58
  5. Step 5: Solve for x
    x = 217,341,636,443.58/535,692.15
  6. Step 6: Final answer
    x = 405,721.15

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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.