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Finding the Fourth Proportional to 583,709.60, 873,620.40 and 423,329.60

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Solution

The fourth proportional to 583,709.60, 873,620.40 and 423,329.60 is: 633,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,709.60 : 873,620.40 = 423,329.60 : x
  2. Step 2: Convert to fraction form
    583,709.60/873,620.40 = 423,329.60/x
  3. Step 3: Cross multiply
    583,709.60x = 873,620.40 × 423,329.60
  4. Step 4: Simplify right side
    583,709.60x = 369,829,374,483.84
  5. Step 5: Solve for x
    x = 369,829,374,483.84/583,709.60
  6. Step 6: Final answer
    x = 633,584.53

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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.