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Finding the Fourth Proportional to 671,721.60, 1,007,582.40 and 584,241.60

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Solution

The fourth proportional to 671,721.60, 1,007,582.40 and 584,241.60 is: 876,362.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,721.60 : 1,007,582.40 = 584,241.60 : x
  2. Step 2: Convert to fraction form
    671,721.60/1,007,582.40 = 584,241.60/x
  3. Step 3: Cross multiply
    671,721.60x = 1,007,582.40 × 584,241.60
  4. Step 4: Simplify right side
    671,721.60x = 588,671,553,507.84
  5. Step 5: Solve for x
    x = 588,671,553,507.84/671,721.60
  6. Step 6: Final answer
    x = 876,362.40

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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.