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Finding the Fourth Proportional to 578,168.80, 867,404.40 and 223,194.40

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Solution

The fourth proportional to 578,168.80, 867,404.40 and 223,194.40 is: 334,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,168.80 : 867,404.40 = 223,194.40 : x
  2. Step 2: Convert to fraction form
    578,168.80/867,404.40 = 223,194.40/x
  3. Step 3: Cross multiply
    578,168.80x = 867,404.40 × 223,194.40
  4. Step 4: Simplify right side
    578,168.80x = 193,599,804,615.36
  5. Step 5: Solve for x
    x = 193,599,804,615.36/578,168.80
  6. Step 6: Final answer
    x = 334,849.97

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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.