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Finding the Fourth Proportional to 551,318.16, 826,477.89 and 382,918.02

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Solution

The fourth proportional to 551,318.16, 826,477.89 and 382,918.02 is: 574,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,318.16 : 826,477.89 = 382,918.02 : x
  2. Step 2: Convert to fraction form
    551,318.16/826,477.89 = 382,918.02/x
  3. Step 3: Cross multiply
    551,318.16x = 826,477.89 × 382,918.02
  4. Step 4: Simplify right side
    551,318.16x = 316,473,277,212.58
  5. Step 5: Solve for x
    x = 316,473,277,212.58/551,318.16
  6. Step 6: Final answer
    x = 574,030.21

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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.