Home / 806,172.65-1,112,484.90-438,651.30

Finding the Fourth Proportional to 806,172.65, 1,112,484.90 and 438,651.30

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Solution

The fourth proportional to 806,172.65, 1,112,484.90 and 438,651.30 is: 605,320.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,172.65 : 1,112,484.90 = 438,651.30 : x
  2. Step 2: Convert to fraction form
    806,172.65/1,112,484.90 = 438,651.30/x
  3. Step 3: Cross multiply
    806,172.65x = 1,112,484.90 × 438,651.30
  4. Step 4: Simplify right side
    806,172.65x = 487,992,947,615.37
  5. Step 5: Solve for x
    x = 487,992,947,615.37/806,172.65
  6. Step 6: Final answer
    x = 605,320.64

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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.