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Finding the Fourth Proportional to 551,568.48, 761,164.08 and 313,104.48

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Solution

The fourth proportional to 551,568.48, 761,164.08 and 313,104.48 is: 432,083.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,568.48 : 761,164.08 = 313,104.48 : x
  2. Step 2: Convert to fraction form
    551,568.48/761,164.08 = 313,104.48/x
  3. Step 3: Cross multiply
    551,568.48x = 761,164.08 × 313,104.48
  4. Step 4: Simplify right side
    551,568.48x = 238,323,883,463.08
  5. Step 5: Solve for x
    x = 238,323,883,463.08/551,568.48
  6. Step 6: Final answer
    x = 432,083.94

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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.