Home / 778,536.56-1,074,381.28-456,182.48

Finding the Fourth Proportional to 778,536.56, 1,074,381.28 and 456,182.48

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Solution

The fourth proportional to 778,536.56, 1,074,381.28 and 456,182.48 is: 629,532.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,536.56 : 1,074,381.28 = 456,182.48 : x
  2. Step 2: Convert to fraction form
    778,536.56/1,074,381.28 = 456,182.48/x
  3. Step 3: Cross multiply
    778,536.56x = 1,074,381.28 × 456,182.48
  4. Step 4: Simplify right side
    778,536.56x = 490,113,916,775.97
  5. Step 5: Solve for x
    x = 490,113,916,775.97/778,536.56
  6. Step 6: Final answer
    x = 629,532.31

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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.