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Finding the Fourth Proportional to 525,969.60, 788,954.40 and 441,988.80

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Solution

The fourth proportional to 525,969.60, 788,954.40 and 441,988.80 is: 662,983.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,969.60 : 788,954.40 = 441,988.80 : x
  2. Step 2: Convert to fraction form
    525,969.60/788,954.40 = 441,988.80/x
  3. Step 3: Cross multiply
    525,969.60x = 788,954.40 × 441,988.80
  4. Step 4: Simplify right side
    525,969.60x = 348,709,008,510.72
  5. Step 5: Solve for x
    x = 348,709,008,510.72/525,969.60
  6. Step 6: Final answer
    x = 662,983.20

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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.