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Finding the Fourth Proportional to 426,809.84, 589,009.46 and 235,835.60

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Solution

The fourth proportional to 426,809.84, 589,009.46 and 235,835.60 is: 325,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,809.84 : 589,009.46 = 235,835.60 : x
  2. Step 2: Convert to fraction form
    426,809.84/589,009.46 = 235,835.60/x
  3. Step 3: Cross multiply
    426,809.84x = 589,009.46 × 235,835.60
  4. Step 4: Simplify right side
    426,809.84x = 138,909,395,280.55
  5. Step 5: Solve for x
    x = 138,909,395,280.55/426,809.84
  6. Step 6: Final answer
    x = 325,459.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.