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Finding the Fourth Proportional to 528,331.33, 729,096.89 and 286,613.92

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Solution

The fourth proportional to 528,331.33, 729,096.89 and 286,613.92 is: 395,527.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,331.33 : 729,096.89 = 286,613.92 : x
  2. Step 2: Convert to fraction form
    528,331.33/729,096.89 = 286,613.92/x
  3. Step 3: Cross multiply
    528,331.33x = 729,096.89 × 286,613.92
  4. Step 4: Simplify right side
    528,331.33x = 208,969,318,092.38
  5. Step 5: Solve for x
    x = 208,969,318,092.38/528,331.33
  6. Step 6: Final answer
    x = 395,527.02

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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.