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Finding the Fourth Proportional to 447,663.40, 672,272.70 and 433,666.60

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Solution

The fourth proportional to 447,663.40, 672,272.70 and 433,666.60 is: 651,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,663.40 : 672,272.70 = 433,666.60 : x
  2. Step 2: Convert to fraction form
    447,663.40/672,272.70 = 433,666.60/x
  3. Step 3: Cross multiply
    447,663.40x = 672,272.70 × 433,666.60
  4. Step 4: Simplify right side
    447,663.40x = 291,542,216,081.82
  5. Step 5: Solve for x
    x = 291,542,216,081.82/447,663.40
  6. Step 6: Final answer
    x = 651,253.19

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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.