Home / 648,793.10-973,189.65-205,561.10

Finding the Fourth Proportional to 648,793.10, 973,189.65 and 205,561.10

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Solution

The fourth proportional to 648,793.10, 973,189.65 and 205,561.10 is: 308,341.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,793.10 : 973,189.65 = 205,561.10 : x
  2. Step 2: Convert to fraction form
    648,793.10/973,189.65 = 205,561.10/x
  3. Step 3: Cross multiply
    648,793.10x = 973,189.65 × 205,561.10
  4. Step 4: Simplify right side
    648,793.10x = 200,049,934,962.62
  5. Step 5: Solve for x
    x = 200,049,934,962.62/648,793.10
  6. Step 6: Final answer
    x = 308,341.65

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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.