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Finding the Fourth Proportional to 407,773.10, 611,659.65 and 348,724.10

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Solution

The fourth proportional to 407,773.10, 611,659.65 and 348,724.10 is: 523,086.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,773.10 : 611,659.65 = 348,724.10 : x
  2. Step 2: Convert to fraction form
    407,773.10/611,659.65 = 348,724.10/x
  3. Step 3: Cross multiply
    407,773.10x = 611,659.65 × 348,724.10
  4. Step 4: Simplify right side
    407,773.10x = 213,300,460,952.57
  5. Step 5: Solve for x
    x = 213,300,460,952.57/407,773.10
  6. Step 6: Final answer
    x = 523,086.15

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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.