Home / 806,385.24-1,112,754.21-479,680.25

Finding the Fourth Proportional to 806,385.24, 1,112,754.21 and 479,680.25

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Solution

The fourth proportional to 806,385.24, 1,112,754.21 and 479,680.25 is: 661,924.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,385.24 : 1,112,754.21 = 479,680.25 : x
  2. Step 2: Convert to fraction form
    806,385.24/1,112,754.21 = 479,680.25/x
  3. Step 3: Cross multiply
    806,385.24x = 1,112,754.21 × 479,680.25
  4. Step 4: Simplify right side
    806,385.24x = 533,766,210,278.78
  5. Step 5: Solve for x
    x = 533,766,210,278.78/806,385.24
  6. Step 6: Final answer
    x = 661,924.58

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Double scale
Find fourth proportional to 806,386.24, 1,112,755.59 and 479,681.25
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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.