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Finding the Fourth Proportional to 583,710.60, 873,621.90 and 423,330.60

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Solution

The fourth proportional to 583,710.60, 873,621.90 and 423,330.60 is: 633,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,710.60 : 873,621.90 = 423,330.60 : x
  2. Step 2: Convert to fraction form
    583,710.60/873,621.90 = 423,330.60/x
  3. Step 3: Cross multiply
    583,710.60x = 873,621.90 × 423,330.60
  4. Step 4: Simplify right side
    583,710.60x = 369,830,883,100.14
  5. Step 5: Solve for x
    x = 369,830,883,100.14/583,710.60
  6. Step 6: Final answer
    x = 633,586.03

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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.