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Finding the Fourth Proportional to 635,220.48, 953,225.76 and 395,804.40

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Solution

The fourth proportional to 635,220.48, 953,225.76 and 395,804.40 is: 593,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,220.48 : 953,225.76 = 395,804.40 : x
  2. Step 2: Convert to fraction form
    635,220.48/953,225.76 = 395,804.40/x
  3. Step 3: Cross multiply
    635,220.48x = 953,225.76 × 395,804.40
  4. Step 4: Simplify right side
    635,220.48x = 377,290,950,001.34
  5. Step 5: Solve for x
    x = 377,290,950,001.34/635,220.48
  6. Step 6: Final answer
    x = 593,952.75

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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.