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Finding the Fourth Proportional to 528,118.96, 728,609.16 and 364,764.64

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Solution

The fourth proportional to 528,118.96, 728,609.16 and 364,764.64 is: 503,240.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,118.96 : 728,609.16 = 364,764.64 : x
  2. Step 2: Convert to fraction form
    528,118.96/728,609.16 = 364,764.64/x
  3. Step 3: Cross multiply
    528,118.96x = 728,609.16 × 364,764.64
  4. Step 4: Simplify right side
    528,118.96x = 265,770,857,948.10
  5. Step 5: Solve for x
    x = 265,770,857,948.10/528,118.96
  6. Step 6: Final answer
    x = 503,240.52

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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.