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Finding the Fourth Proportional to 528,597.42, 792,889.03 and 129,241.63

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Solution

The fourth proportional to 528,597.42, 792,889.03 and 129,241.63 is: 193,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,597.42 : 792,889.03 = 129,241.63 : x
  2. Step 2: Convert to fraction form
    528,597.42/792,889.03 = 129,241.63/x
  3. Step 3: Cross multiply
    528,597.42x = 792,889.03 × 129,241.63
  4. Step 4: Simplify right side
    528,597.42x = 102,474,270,646.32
  5. Step 5: Solve for x
    x = 102,474,270,646.32/528,597.42
  6. Step 6: Final answer
    x = 193,860.71

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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.