Home / 939,408-1,296,383.12-537,008.64

Finding the Fourth Proportional to 939,408, 1,296,383.12 and 537,008.64

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Solution

The fourth proportional to 939,408, 1,296,383.12 and 537,008.64 is: 741,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,408 : 1,296,383.12 = 537,008.64 : x
  2. Step 2: Convert to fraction form
    939,408/1,296,383.12 = 537,008.64/x
  3. Step 3: Cross multiply
    939,408x = 1,296,383.12 × 537,008.64
  4. Step 4: Simplify right side
    939,408x = 696,168,936,190.16
  5. Step 5: Solve for x
    x = 696,168,936,190.16/939,408
  6. Step 6: Final answer
    x = 741,071.97

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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.