Home / 839,644.70-1,259,467.05-341,366.30

Finding the Fourth Proportional to 839,644.70, 1,259,467.05 and 341,366.30

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Solution

The fourth proportional to 839,644.70, 1,259,467.05 and 341,366.30 is: 512,049.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,644.70 : 1,259,467.05 = 341,366.30 : x
  2. Step 2: Convert to fraction form
    839,644.70/1,259,467.05 = 341,366.30/x
  3. Step 3: Cross multiply
    839,644.70x = 1,259,467.05 × 341,366.30
  4. Step 4: Simplify right side
    839,644.70x = 429,939,606,830.42
  5. Step 5: Solve for x
    x = 429,939,606,830.42/839,644.70
  6. Step 6: Final answer
    x = 512,049.45

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Half scale
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Double scale
Find fourth proportional to 839,645.70, 1,259,468.55 and 341,367.30
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.