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Finding the Fourth Proportional to 837,641.72, 1,256,462.76 and 585,414.88

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Solution

The fourth proportional to 837,641.72, 1,256,462.76 and 585,414.88 is: 878,122.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,641.72 : 1,256,462.76 = 585,414.88 : x
  2. Step 2: Convert to fraction form
    837,641.72/1,256,462.76 = 585,414.88/x
  3. Step 3: Cross multiply
    837,641.72x = 1,256,462.76 × 585,414.88
  4. Step 4: Simplify right side
    837,641.72x = 735,551,995,869.87
  5. Step 5: Solve for x
    x = 735,551,995,869.87/837,641.72
  6. Step 6: Final answer
    x = 878,122.45

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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.