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Finding the Fourth Proportional to 583,665.75, 874,365.71 and 383,378.40

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Solution

The fourth proportional to 583,665.75, 874,365.71 and 383,378.40 is: 574,323.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,665.75 : 874,365.71 = 383,378.40 : x
  2. Step 2: Convert to fraction form
    583,665.75/874,365.71 = 383,378.40/x
  3. Step 3: Cross multiply
    583,665.75x = 874,365.71 × 383,378.40
  4. Step 4: Simplify right side
    583,665.75x = 335,212,924,997.77
  5. Step 5: Solve for x
    x = 335,212,924,997.77/583,665.75
  6. Step 6: Final answer
    x = 574,323.45

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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.