Home / 535,317.40-802,976.10-220,000.60

Finding the Fourth Proportional to 535,317.40, 802,976.10 and 220,000.60

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Solution

The fourth proportional to 535,317.40, 802,976.10 and 220,000.60 is: 330,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,317.40 : 802,976.10 = 220,000.60 : x
  2. Step 2: Convert to fraction form
    535,317.40/802,976.10 = 220,000.60/x
  3. Step 3: Cross multiply
    535,317.40x = 802,976.10 × 220,000.60
  4. Step 4: Simplify right side
    535,317.40x = 176,655,223,785.66
  5. Step 5: Solve for x
    x = 176,655,223,785.66/535,317.40
  6. Step 6: Final answer
    x = 330,000.90

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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.