Home / 804,941.10-1,207,411.65-431,693.10

Finding the Fourth Proportional to 804,941.10, 1,207,411.65 and 431,693.10

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Solution

The fourth proportional to 804,941.10, 1,207,411.65 and 431,693.10 is: 647,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,941.10 : 1,207,411.65 = 431,693.10 : x
  2. Step 2: Convert to fraction form
    804,941.10/1,207,411.65 = 431,693.10/x
  3. Step 3: Cross multiply
    804,941.10x = 1,207,411.65 × 431,693.10
  4. Step 4: Simplify right side
    804,941.10x = 521,231,278,164.62
  5. Step 5: Solve for x
    x = 521,231,278,164.62/804,941.10
  6. Step 6: Final answer
    x = 647,539.65

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Half scale
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Double scale
Find fourth proportional to 804,942.10, 1,207,413.15 and 431,694.10
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.