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Finding the Fourth Proportional to 551,538.12, 761,205 and 336,802.68

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Solution

The fourth proportional to 551,538.12, 761,205 and 336,802.68 is: 464,838.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,538.12 : 761,205 = 336,802.68 : x
  2. Step 2: Convert to fraction form
    551,538.12/761,205 = 336,802.68/x
  3. Step 3: Cross multiply
    551,538.12x = 761,205 × 336,802.68
  4. Step 4: Simplify right side
    551,538.12x = 256,375,884,029.40
  5. Step 5: Solve for x
    x = 256,375,884,029.40/551,538.12
  6. Step 6: Final answer
    x = 464,838.01

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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.