Home / 1,643,590.23-2,268,111.09-918,443.91

Finding the Fourth Proportional to 1,643,590.23, 2,268,111.09 and 918,443.91

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Solution

The fourth proportional to 1,643,590.23, 2,268,111.09 and 918,443.91 is: 1,267,428.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,590.23 : 2,268,111.09 = 918,443.91 : x
  2. Step 2: Convert to fraction form
    1,643,590.23/2,268,111.09 = 918,443.91/x
  3. Step 3: Cross multiply
    1,643,590.23x = 2,268,111.09 × 918,443.91
  4. Step 4: Simplify right side
    1,643,590.23x = 2,083,132,817,813.96
  5. Step 5: Solve for x
    x = 2,083,132,817,813.96/1,643,590.23
  6. Step 6: Final answer
    x = 1,267,428.33

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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.