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Finding the Fourth Proportional to 706,256.40, 1,059,384.60 and 374,480.40

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Solution

The fourth proportional to 706,256.40, 1,059,384.60 and 374,480.40 is: 561,720.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,256.40 : 1,059,384.60 = 374,480.40 : x
  2. Step 2: Convert to fraction form
    706,256.40/1,059,384.60 = 374,480.40/x
  3. Step 3: Cross multiply
    706,256.40x = 1,059,384.60 × 374,480.40
  4. Step 4: Simplify right side
    706,256.40x = 396,718,768,761.84
  5. Step 5: Solve for x
    x = 396,718,768,761.84/706,256.40
  6. Step 6: Final answer
    x = 561,720.60

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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.