Home / 778,631.07-1,074,536.61-451,919.60

Finding the Fourth Proportional to 778,631.07, 1,074,536.61 and 451,919.60

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Solution

The fourth proportional to 778,631.07, 1,074,536.61 and 451,919.60 is: 623,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,631.07 : 1,074,536.61 = 451,919.60 : x
  2. Step 2: Convert to fraction form
    778,631.07/1,074,536.61 = 451,919.60/x
  3. Step 3: Cross multiply
    778,631.07x = 1,074,536.61 × 451,919.60
  4. Step 4: Simplify right side
    778,631.07x = 485,604,149,603.87
  5. Step 5: Solve for x
    x = 485,604,149,603.87/778,631.07
  6. Step 6: Final answer
    x = 623,663.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.