Home / 840,692.49-1,160,181.19-478,168.48

Finding the Fourth Proportional to 840,692.49, 1,160,181.19 and 478,168.48

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Solution

The fourth proportional to 840,692.49, 1,160,181.19 and 478,168.48 is: 659,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,692.49 : 1,160,181.19 = 478,168.48 : x
  2. Step 2: Convert to fraction form
    840,692.49/1,160,181.19 = 478,168.48/x
  3. Step 3: Cross multiply
    840,692.49x = 1,160,181.19 × 478,168.48
  4. Step 4: Simplify right side
    840,692.49x = 554,762,078,194.83
  5. Step 5: Solve for x
    x = 554,762,078,194.83/840,692.49
  6. Step 6: Final answer
    x = 659,887.04

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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.