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Finding the Fourth Proportional to 541,976.13, 746,722.72 and 357,887.83

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Solution

The fourth proportional to 541,976.13, 746,722.72 and 357,887.83 is: 493,089.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,976.13 : 746,722.72 = 357,887.83 : x
  2. Step 2: Convert to fraction form
    541,976.13/746,722.72 = 357,887.83/x
  3. Step 3: Cross multiply
    541,976.13x = 746,722.72 × 357,887.83
  4. Step 4: Simplify right side
    541,976.13x = 267,242,973,872.50
  5. Step 5: Solve for x
    x = 267,242,973,872.50/541,976.13
  6. Step 6: Final answer
    x = 493,089.93

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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.