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Finding the Fourth Proportional to 837,683.64, 1,255,611.54 and 411,512.76

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Solution

The fourth proportional to 837,683.64, 1,255,611.54 and 411,512.76 is: 616,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,683.64 : 1,255,611.54 = 411,512.76 : x
  2. Step 2: Convert to fraction form
    837,683.64/1,255,611.54 = 411,512.76/x
  3. Step 3: Cross multiply
    837,683.64x = 1,255,611.54 × 411,512.76
  4. Step 4: Simplify right side
    837,683.64x = 516,700,170,313.25
  5. Step 5: Solve for x
    x = 516,700,170,313.25/837,683.64
  6. Step 6: Final answer
    x = 616,820.18

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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.