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Finding the Fourth Proportional to 415,738.68, 623,327.81 and 335,874.90

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Solution

The fourth proportional to 415,738.68, 623,327.81 and 335,874.90 is: 503,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,738.68 : 623,327.81 = 335,874.90 : x
  2. Step 2: Convert to fraction form
    415,738.68/623,327.81 = 335,874.90/x
  3. Step 3: Cross multiply
    415,738.68x = 623,327.81 × 335,874.90
  4. Step 4: Simplify right side
    415,738.68x = 209,360,166,509.07
  5. Step 5: Solve for x
    x = 209,360,166,509.07/415,738.68
  6. Step 6: Final answer
    x = 503,585.97

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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.