Home / 642,302.20-963,453.30-193,092.40

Finding the Fourth Proportional to 642,302.20, 963,453.30 and 193,092.40

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Solution

The fourth proportional to 642,302.20, 963,453.30 and 193,092.40 is: 289,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,302.20 : 963,453.30 = 193,092.40 : x
  2. Step 2: Convert to fraction form
    642,302.20/963,453.30 = 193,092.40/x
  3. Step 3: Cross multiply
    642,302.20x = 963,453.30 × 193,092.40
  4. Step 4: Simplify right side
    642,302.20x = 186,035,509,984.92
  5. Step 5: Solve for x
    x = 186,035,509,984.92/642,302.20
  6. Step 6: Final answer
    x = 289,638.60

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Double scale
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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.