Home / 805,166.04-1,111,376.70-518,685.24

Finding the Fourth Proportional to 805,166.04, 1,111,376.70 and 518,685.24

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Solution

The fourth proportional to 805,166.04, 1,111,376.70 and 518,685.24 is: 715,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,166.04 : 1,111,376.70 = 518,685.24 : x
  2. Step 2: Convert to fraction form
    805,166.04/1,111,376.70 = 518,685.24/x
  3. Step 3: Cross multiply
    805,166.04x = 1,111,376.70 × 518,685.24
  4. Step 4: Simplify right side
    805,166.04x = 576,454,690,369.91
  5. Step 5: Solve for x
    x = 576,454,690,369.91/805,166.04
  6. Step 6: Final answer
    x = 715,945.11

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Double scale
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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.