Home / 1,207,485.03-1,666,369.29-663,640.10

Finding the Fourth Proportional to 1,207,485.03, 1,666,369.29 and 663,640.10

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Solution

The fourth proportional to 1,207,485.03, 1,666,369.29 and 663,640.10 is: 915,845.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,485.03 : 1,666,369.29 = 663,640.10 : x
  2. Step 2: Convert to fraction form
    1,207,485.03/1,666,369.29 = 663,640.10/x
  3. Step 3: Cross multiply
    1,207,485.03x = 1,666,369.29 × 663,640.10
  4. Step 4: Simplify right side
    1,207,485.03x = 1,105,869,473,920.68
  5. Step 5: Solve for x
    x = 1,105,869,473,920.68/1,207,485.03
  6. Step 6: Final answer
    x = 915,845.29

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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.