Home / 728,000.40-1,092,000.60-651,892.80

Finding the Fourth Proportional to 728,000.40, 1,092,000.60 and 651,892.80

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Solution

The fourth proportional to 728,000.40, 1,092,000.60 and 651,892.80 is: 977,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,000.40 : 1,092,000.60 = 651,892.80 : x
  2. Step 2: Convert to fraction form
    728,000.40/1,092,000.60 = 651,892.80/x
  3. Step 3: Cross multiply
    728,000.40x = 1,092,000.60 × 651,892.80
  4. Step 4: Simplify right side
    728,000.40x = 711,867,328,735.68
  5. Step 5: Solve for x
    x = 711,867,328,735.68/728,000.40
  6. Step 6: Final answer
    x = 977,839.20

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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.