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Finding the Fourth Proportional to 503,665.57, 755,760.80 and 223,117.21

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Solution

The fourth proportional to 503,665.57, 755,760.80 and 223,117.21 is: 334,792.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,665.57 : 755,760.80 = 223,117.21 : x
  2. Step 2: Convert to fraction form
    503,665.57/755,760.80 = 223,117.21/x
  3. Step 3: Cross multiply
    503,665.57x = 755,760.80 × 223,117.21
  4. Step 4: Simplify right side
    503,665.57x = 168,623,241,123.37
  5. Step 5: Solve for x
    x = 168,623,241,123.37/503,665.57
  6. Step 6: Final answer
    x = 334,792.07

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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.