Home / 673,140.66-928,869.57-371,315.22

Finding the Fourth Proportional to 673,140.66, 928,869.57 and 371,315.22

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Solution

The fourth proportional to 673,140.66, 928,869.57 and 371,315.22 is: 512,379.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,140.66 : 928,869.57 = 371,315.22 : x
  2. Step 2: Convert to fraction form
    673,140.66/928,869.57 = 371,315.22/x
  3. Step 3: Cross multiply
    673,140.66x = 928,869.57 × 371,315.22
  4. Step 4: Simplify right side
    673,140.66x = 344,903,408,735.86
  5. Step 5: Solve for x
    x = 344,903,408,735.86/673,140.66
  6. Step 6: Final answer
    x = 512,379.40

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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.