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Finding the Fourth Proportional to 478,461.24, 660,306.26 and 263,601.25

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Solution

The fourth proportional to 478,461.24, 660,306.26 and 263,601.25 is: 363,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,461.24 : 660,306.26 = 263,601.25 : x
  2. Step 2: Convert to fraction form
    478,461.24/660,306.26 = 263,601.25/x
  3. Step 3: Cross multiply
    478,461.24x = 660,306.26 × 263,601.25
  4. Step 4: Simplify right side
    478,461.24x = 174,057,554,527.06
  5. Step 5: Solve for x
    x = 174,057,554,527.06/478,461.24
  6. Step 6: Final answer
    x = 363,786.11

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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.