Home / 1,290,568.40-1,934,108.80-491,414

Finding the Fourth Proportional to 1,290,568.40, 1,934,108.80 and 491,414

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Solution

The fourth proportional to 1,290,568.40, 1,934,108.80 and 491,414 is: 736,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,568.40 : 1,934,108.80 = 491,414 : x
  2. Step 2: Convert to fraction form
    1,290,568.40/1,934,108.80 = 491,414/x
  3. Step 3: Cross multiply
    1,290,568.40x = 1,934,108.80 × 491,414
  4. Step 4: Simplify right side
    1,290,568.40x = 950,448,141,843.20
  5. Step 5: Solve for x
    x = 950,448,141,843.20/1,290,568.40
  6. Step 6: Final answer
    x = 736,457.01

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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.