Home / 649,189.20-973,783.80-450,123.60

Finding the Fourth Proportional to 649,189.20, 973,783.80 and 450,123.60

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Solution

The fourth proportional to 649,189.20, 973,783.80 and 450,123.60 is: 675,185.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,189.20 : 973,783.80 = 450,123.60 : x
  2. Step 2: Convert to fraction form
    649,189.20/973,783.80 = 450,123.60/x
  3. Step 3: Cross multiply
    649,189.20x = 973,783.80 × 450,123.60
  4. Step 4: Simplify right side
    649,189.20x = 438,323,069,677.68
  5. Step 5: Solve for x
    x = 438,323,069,677.68/649,189.20
  6. Step 6: Final answer
    x = 675,185.40

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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.