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Finding the Fourth Proportional to 534,878.39, 802,354.51 and 155,802.28

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Solution

The fourth proportional to 534,878.39, 802,354.51 and 155,802.28 is: 233,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,878.39 : 802,354.51 = 155,802.28 : x
  2. Step 2: Convert to fraction form
    534,878.39/802,354.51 = 155,802.28/x
  3. Step 3: Cross multiply
    534,878.39x = 802,354.51 × 155,802.28
  4. Step 4: Simplify right side
    534,878.39x = 125,008,659,630.89
  5. Step 5: Solve for x
    x = 125,008,659,630.89/534,878.39
  6. Step 6: Final answer
    x = 233,714.17

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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.