Home / 805,073.78-1,111,004.24-442,534.79

Finding the Fourth Proportional to 805,073.78, 1,111,004.24 and 442,534.79

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Solution

The fourth proportional to 805,073.78, 1,111,004.24 and 442,534.79 is: 610,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,073.78 : 1,111,004.24 = 442,534.79 : x
  2. Step 2: Convert to fraction form
    805,073.78/1,111,004.24 = 442,534.79/x
  3. Step 3: Cross multiply
    805,073.78x = 1,111,004.24 × 442,534.79
  4. Step 4: Simplify right side
    805,073.78x = 491,658,028,037.51
  5. Step 5: Solve for x
    x = 491,658,028,037.51/805,073.78
  6. Step 6: Final answer
    x = 610,699.34

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Double scale
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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.