Home / 945,919.35-1,305,397.53-538,080.30

Finding the Fourth Proportional to 945,919.35, 1,305,397.53 and 538,080.30

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Solution

The fourth proportional to 945,919.35, 1,305,397.53 and 538,080.30 is: 742,567.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,919.35 : 1,305,397.53 = 538,080.30 : x
  2. Step 2: Convert to fraction form
    945,919.35/1,305,397.53 = 538,080.30/x
  3. Step 3: Cross multiply
    945,919.35x = 1,305,397.53 × 538,080.30
  4. Step 4: Simplify right side
    945,919.35x = 702,408,694,561.66
  5. Step 5: Solve for x
    x = 702,408,694,561.66/945,919.35
  6. Step 6: Final answer
    x = 742,567.21

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1.5x scale

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.