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Finding the Fourth Proportional to 447,040.53, 616,897.15 and 253,461.26

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Solution

The fourth proportional to 447,040.53, 616,897.15 and 253,461.26 is: 349,765.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,040.53 : 616,897.15 = 253,461.26 : x
  2. Step 2: Convert to fraction form
    447,040.53/616,897.15 = 253,461.26/x
  3. Step 3: Cross multiply
    447,040.53x = 616,897.15 × 253,461.26
  4. Step 4: Simplify right side
    447,040.53x = 156,359,526,267.05
  5. Step 5: Solve for x
    x = 156,359,526,267.05/447,040.53
  6. Step 6: Final answer
    x = 349,765.89

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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.