Home / 853,030.20-1,279,199.70-291,775.80

Finding the Fourth Proportional to 853,030.20, 1,279,199.70 and 291,775.80

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Solution

The fourth proportional to 853,030.20, 1,279,199.70 and 291,775.80 is: 437,545.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,030.20 : 1,279,199.70 = 291,775.80 : x
  2. Step 2: Convert to fraction form
    853,030.20/1,279,199.70 = 291,775.80/x
  3. Step 3: Cross multiply
    853,030.20x = 1,279,199.70 × 291,775.80
  4. Step 4: Simplify right side
    853,030.20x = 373,239,515,827.26
  5. Step 5: Solve for x
    x = 373,239,515,827.26/853,030.20
  6. Step 6: Final answer
    x = 437,545.49

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Double scale
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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.