Home / 1,105,301.40-1,658,826.90-431,705.40

Finding the Fourth Proportional to 1,105,301.40, 1,658,826.90 and 431,705.40

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Solution

The fourth proportional to 1,105,301.40, 1,658,826.90 and 431,705.40 is: 647,899.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,301.40 : 1,658,826.90 = 431,705.40 : x
  2. Step 2: Convert to fraction form
    1,105,301.40/1,658,826.90 = 431,705.40/x
  3. Step 3: Cross multiply
    1,105,301.40x = 1,658,826.90 × 431,705.40
  4. Step 4: Simplify right side
    1,105,301.40x = 716,124,530,395.26
  5. Step 5: Solve for x
    x = 716,124,530,395.26/1,105,301.40
  6. Step 6: Final answer
    x = 647,899.78

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1.5x scale

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.