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Finding the Fourth Proportional to 534,726, 737,921.88 and 319,875.12

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Solution

The fourth proportional to 534,726, 737,921.88 and 319,875.12 is: 441,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,726 : 737,921.88 = 319,875.12 : x
  2. Step 2: Convert to fraction form
    534,726/737,921.88 = 319,875.12/x
  3. Step 3: Cross multiply
    534,726x = 737,921.88 × 319,875.12
  4. Step 4: Simplify right side
    534,726x = 236,042,849,915.63
  5. Step 5: Solve for x
    x = 236,042,849,915.63/534,726
  6. Step 6: Final answer
    x = 441,427.67

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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.