Home / 433,009.40-649,514.10-291,291.80

Finding the Fourth Proportional to 433,009.40, 649,514.10 and 291,291.80

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Solution

The fourth proportional to 433,009.40, 649,514.10 and 291,291.80 is: 436,937.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,009.40 : 649,514.10 = 291,291.80 : x
  2. Step 2: Convert to fraction form
    433,009.40/649,514.10 = 291,291.80/x
  3. Step 3: Cross multiply
    433,009.40x = 649,514.10 × 291,291.80
  4. Step 4: Simplify right side
    433,009.40x = 189,198,131,314.38
  5. Step 5: Solve for x
    x = 189,198,131,314.38/433,009.40
  6. Step 6: Final answer
    x = 436,937.70

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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.