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Finding the Fourth Proportional to 569,801.10, 786,272.64 and 315,146.82

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Solution

The fourth proportional to 569,801.10, 786,272.64 and 315,146.82 is: 434,873.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,801.10 : 786,272.64 = 315,146.82 : x
  2. Step 2: Convert to fraction form
    569,801.10/786,272.64 = 315,146.82/x
  3. Step 3: Cross multiply
    569,801.10x = 786,272.64 × 315,146.82
  4. Step 4: Simplify right side
    569,801.10x = 247,791,322,149.01
  5. Step 5: Solve for x
    x = 247,791,322,149.01/569,801.10
  6. Step 6: Final answer
    x = 434,873.37

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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.