Home / 626,590.20-939,885.30-311,662.20

Finding the Fourth Proportional to 626,590.20, 939,885.30 and 311,662.20

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Solution

The fourth proportional to 626,590.20, 939,885.30 and 311,662.20 is: 467,493.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,590.20 : 939,885.30 = 311,662.20 : x
  2. Step 2: Convert to fraction form
    626,590.20/939,885.30 = 311,662.20/x
  3. Step 3: Cross multiply
    626,590.20x = 939,885.30 × 311,662.20
  4. Step 4: Simplify right side
    626,590.20x = 292,926,720,345.66
  5. Step 5: Solve for x
    x = 292,926,720,345.66/626,590.20
  6. Step 6: Final answer
    x = 467,493.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 626,591.20, 939,886.80 and 311,663.20
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.