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Finding the Fourth Proportional to 447,655.40, 672,260.70 and 237,703.40

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Solution

The fourth proportional to 447,655.40, 672,260.70 and 237,703.40 is: 356,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,655.40 : 672,260.70 = 237,703.40 : x
  2. Step 2: Convert to fraction form
    447,655.40/672,260.70 = 237,703.40/x
  3. Step 3: Cross multiply
    447,655.40x = 672,260.70 × 237,703.40
  4. Step 4: Simplify right side
    447,655.40x = 159,798,654,076.38
  5. Step 5: Solve for x
    x = 159,798,654,076.38/447,655.40
  6. Step 6: Final answer
    x = 356,968.00

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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.