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Finding the Fourth Proportional to 448,857.50, 619,436.31 and 247,666.46

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Solution

The fourth proportional to 448,857.50, 619,436.31 and 247,666.46 is: 341,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,857.50 : 619,436.31 = 247,666.46 : x
  2. Step 2: Convert to fraction form
    448,857.50/619,436.31 = 247,666.46/x
  3. Step 3: Cross multiply
    448,857.50x = 619,436.31 × 247,666.46
  4. Step 4: Simplify right side
    448,857.50x = 153,413,598,093.16
  5. Step 5: Solve for x
    x = 153,413,598,093.16/448,857.50
  6. Step 6: Final answer
    x = 341,786.87

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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.