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Finding the Fourth Proportional to 525,761.60, 788,642.40 and 441,780.80

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Solution

The fourth proportional to 525,761.60, 788,642.40 and 441,780.80 is: 662,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,761.60 : 788,642.40 = 441,780.80 : x
  2. Step 2: Convert to fraction form
    525,761.60/788,642.40 = 441,780.80/x
  3. Step 3: Cross multiply
    525,761.60x = 788,642.40 × 441,780.80
  4. Step 4: Simplify right side
    525,761.60x = 348,407,070,385.92
  5. Step 5: Solve for x
    x = 348,407,070,385.92/525,761.60
  6. Step 6: Final answer
    x = 662,671.20

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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.