Home / 905,687.29-1,249,863.06-518,501.17

Finding the Fourth Proportional to 905,687.29, 1,249,863.06 and 518,501.17

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Solution

The fourth proportional to 905,687.29, 1,249,863.06 and 518,501.17 is: 715,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,687.29 : 1,249,863.06 = 518,501.17 : x
  2. Step 2: Convert to fraction form
    905,687.29/1,249,863.06 = 518,501.17/x
  3. Step 3: Cross multiply
    905,687.29x = 1,249,863.06 × 518,501.17
  4. Step 4: Simplify right side
    905,687.29x = 648,055,458,949.78
  5. Step 5: Solve for x
    x = 648,055,458,949.78/905,687.29
  6. Step 6: Final answer
    x = 715,539.97

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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.