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Finding the Fourth Proportional to 438,125.50, 604,613.22 and 236,921.50

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Solution

The fourth proportional to 438,125.50, 604,613.22 and 236,921.50 is: 326,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,125.50 : 604,613.22 = 236,921.50 : x
  2. Step 2: Convert to fraction form
    438,125.50/604,613.22 = 236,921.50/x
  3. Step 3: Cross multiply
    438,125.50x = 604,613.22 × 236,921.50
  4. Step 4: Simplify right side
    438,125.50x = 143,245,871,002.23
  5. Step 5: Solve for x
    x = 143,245,871,002.23/438,125.50
  6. Step 6: Final answer
    x = 326,951.69

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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.