Home / 805,187.64-1,111,172.76-442,626.78

Finding the Fourth Proportional to 805,187.64, 1,111,172.76 and 442,626.78

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Solution

The fourth proportional to 805,187.64, 1,111,172.76 and 442,626.78 is: 610,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,187.64 : 1,111,172.76 = 442,626.78 : x
  2. Step 2: Convert to fraction form
    805,187.64/1,111,172.76 = 442,626.78/x
  3. Step 3: Cross multiply
    805,187.64x = 1,111,172.76 × 442,626.78
  4. Step 4: Simplify right side
    805,187.64x = 491,834,820,782.51
  5. Step 5: Solve for x
    x = 491,834,820,782.51/805,187.64
  6. Step 6: Final answer
    x = 610,832.55

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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.