Home / 853,244.70-1,279,521.45-291,990.30

Finding the Fourth Proportional to 853,244.70, 1,279,521.45 and 291,990.30

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Solution

The fourth proportional to 853,244.70, 1,279,521.45 and 291,990.30 is: 437,867.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,244.70 : 1,279,521.45 = 291,990.30 : x
  2. Step 2: Convert to fraction form
    853,244.70/1,279,521.45 = 291,990.30/x
  3. Step 3: Cross multiply
    853,244.70x = 1,279,521.45 × 291,990.30
  4. Step 4: Simplify right side
    853,244.70x = 373,607,852,041.94
  5. Step 5: Solve for x
    x = 373,607,852,041.94/853,244.70
  6. Step 6: Final answer
    x = 437,867.18

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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.