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Finding the Fourth Proportional to 505,920.53, 698,170.59 and 279,566.03

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Solution

The fourth proportional to 505,920.53, 698,170.59 and 279,566.03 is: 385,801.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,920.53 : 698,170.59 = 279,566.03 : x
  2. Step 2: Convert to fraction form
    505,920.53/698,170.59 = 279,566.03/x
  3. Step 3: Cross multiply
    505,920.53x = 698,170.59 × 279,566.03
  4. Step 4: Simplify right side
    505,920.53x = 195,184,781,854.48
  5. Step 5: Solve for x
    x = 195,184,781,854.48/505,920.53
  6. Step 6: Final answer
    x = 385,801.27

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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.