Home / 649,270.20-973,905.30-577,999.80

Finding the Fourth Proportional to 649,270.20, 973,905.30 and 577,999.80

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Solution

The fourth proportional to 649,270.20, 973,905.30 and 577,999.80 is: 866,999.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,270.20 : 973,905.30 = 577,999.80 : x
  2. Step 2: Convert to fraction form
    649,270.20/973,905.30 = 577,999.80/x
  3. Step 3: Cross multiply
    649,270.20x = 973,905.30 × 577,999.80
  4. Step 4: Simplify right side
    649,270.20x = 562,917,068,618.94
  5. Step 5: Solve for x
    x = 562,917,068,618.94/649,270.20
  6. Step 6: Final answer
    x = 866,999.70

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Half scale
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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.