Home / 1,277,528.67-1,916,217.41-478,743.39

Finding the Fourth Proportional to 1,277,528.67, 1,916,217.41 and 478,743.39

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Solution

The fourth proportional to 1,277,528.67, 1,916,217.41 and 478,743.39 is: 718,086.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,528.67 : 1,916,217.41 = 478,743.39 : x
  2. Step 2: Convert to fraction form
    1,277,528.67/1,916,217.41 = 478,743.39/x
  3. Step 3: Cross multiply
    1,277,528.67x = 1,916,217.41 × 478,743.39
  4. Step 4: Simplify right side
    1,277,528.67x = 917,376,416,446.70
  5. Step 5: Solve for x
    x = 917,376,416,446.70/1,277,528.67
  6. Step 6: Final answer
    x = 718,086.75

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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.