Home / 804,931.10-1,207,396.65-431,683.10

Finding the Fourth Proportional to 804,931.10, 1,207,396.65 and 431,683.10

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Solution

The fourth proportional to 804,931.10, 1,207,396.65 and 431,683.10 is: 647,524.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,931.10 : 1,207,396.65 = 431,683.10 : x
  2. Step 2: Convert to fraction form
    804,931.10/1,207,396.65 = 431,683.10/x
  3. Step 3: Cross multiply
    804,931.10x = 1,207,396.65 × 431,683.10
  4. Step 4: Simplify right side
    804,931.10x = 521,212,728,801.62
  5. Step 5: Solve for x
    x = 521,212,728,801.62/804,931.10
  6. Step 6: Final answer
    x = 647,524.65

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Half scale
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Double scale
Find fourth proportional to 804,932.10, 1,207,398.15 and 431,684.10
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.