Home / 503,353.20-694,657.38-288,507.18

Finding the Fourth Proportional to 503,353.20, 694,657.38 and 288,507.18

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Solution

The fourth proportional to 503,353.20, 694,657.38 and 288,507.18 is: 398,157.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,353.20 : 694,657.38 = 288,507.18 : x
  2. Step 2: Convert to fraction form
    503,353.20/694,657.38 = 288,507.18/x
  3. Step 3: Cross multiply
    503,353.20x = 694,657.38 × 288,507.18
  4. Step 4: Simplify right side
    503,353.20x = 200,413,641,769.99
  5. Step 5: Solve for x
    x = 200,413,641,769.99/503,353.20
  6. Step 6: Final answer
    x = 398,157.08

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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.