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Finding the Fourth Proportional to 590,910.39, 815,451.30 and 336,275.55

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Solution

The fourth proportional to 590,910.39, 815,451.30 and 336,275.55 is: 464,057.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,910.39 : 815,451.30 = 336,275.55 : x
  2. Step 2: Convert to fraction form
    590,910.39/815,451.30 = 336,275.55/x
  3. Step 3: Cross multiply
    590,910.39x = 815,451.30 × 336,275.55
  4. Step 4: Simplify right side
    590,910.39x = 274,216,334,405.72
  5. Step 5: Solve for x
    x = 274,216,334,405.72/590,910.39
  6. Step 6: Final answer
    x = 464,057.39

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Double scale
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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.