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Finding the Fourth Proportional to 481,417.16, 664,302.03 and 266,503.40

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Solution

The fourth proportional to 481,417.16, 664,302.03 and 266,503.40 is: 367,744.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,417.16 : 664,302.03 = 266,503.40 : x
  2. Step 2: Convert to fraction form
    481,417.16/664,302.03 = 266,503.40/x
  3. Step 3: Cross multiply
    481,417.16x = 664,302.03 × 266,503.40
  4. Step 4: Simplify right side
    481,417.16x = 177,038,749,621.90
  5. Step 5: Solve for x
    x = 177,038,749,621.90/481,417.16
  6. Step 6: Final answer
    x = 367,744.99

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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.