Home / 1,785,448.32-2,678,186.40-663,516

Finding the Fourth Proportional to 1,785,448.32, 2,678,186.40 and 663,516

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Solution

The fourth proportional to 1,785,448.32, 2,678,186.40 and 663,516 is: 995,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,785,448.32 : 2,678,186.40 = 663,516 : x
  2. Step 2: Convert to fraction form
    1,785,448.32/2,678,186.40 = 663,516/x
  3. Step 3: Cross multiply
    1,785,448.32x = 2,678,186.40 × 663,516
  4. Step 4: Simplify right side
    1,785,448.32x = 1,777,019,527,382.40
  5. Step 5: Solve for x
    x = 1,777,019,527,382.40/1,785,448.32
  6. Step 6: Final answer
    x = 995,279.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.