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Finding the Fourth Proportional to 533,968.60, 736,803.78 and 319,063.24

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Solution

The fourth proportional to 533,968.60, 736,803.78 and 319,063.24 is: 440,263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,968.60 : 736,803.78 = 319,063.24 : x
  2. Step 2: Convert to fraction form
    533,968.60/736,803.78 = 319,063.24/x
  3. Step 3: Cross multiply
    533,968.60x = 736,803.78 × 319,063.24
  4. Step 4: Simplify right side
    533,968.60x = 235,087,001,291.05
  5. Step 5: Solve for x
    x = 235,087,001,291.05/533,968.60
  6. Step 6: Final answer
    x = 440,263.72

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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.