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Finding the Fourth Proportional to 438,907.28, 658,360.91 and 106,483.28

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Solution

The fourth proportional to 438,907.28, 658,360.91 and 106,483.28 is: 159,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,907.28 : 658,360.91 = 106,483.28 : x
  2. Step 2: Convert to fraction form
    438,907.28/658,360.91 = 106,483.28/x
  3. Step 3: Cross multiply
    438,907.28x = 658,360.91 × 106,483.28
  4. Step 4: Simplify right side
    438,907.28x = 70,104,425,828.78
  5. Step 5: Solve for x
    x = 70,104,425,828.78/438,907.28
  6. Step 6: Final answer
    x = 159,724.91

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Similar ratio
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1.5x scale

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.