Home / 1,187,740.19-1,638,696.12-671,444.17

Finding the Fourth Proportional to 1,187,740.19, 1,638,696.12 and 671,444.17

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Solution

The fourth proportional to 1,187,740.19, 1,638,696.12 and 671,444.17 is: 926,375.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,740.19 : 1,638,696.12 = 671,444.17 : x
  2. Step 2: Convert to fraction form
    1,187,740.19/1,638,696.12 = 671,444.17/x
  3. Step 3: Cross multiply
    1,187,740.19x = 1,638,696.12 × 671,444.17
  4. Step 4: Simplify right side
    1,187,740.19x = 1,100,292,949,560.96
  5. Step 5: Solve for x
    x = 1,100,292,949,560.96/1,187,740.19
  6. Step 6: Final answer
    x = 926,375.11

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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.