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Finding the Fourth Proportional to 660,696.40, 991,044.60 and 544,056.40

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Solution

The fourth proportional to 660,696.40, 991,044.60 and 544,056.40 is: 816,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,696.40 : 991,044.60 = 544,056.40 : x
  2. Step 2: Convert to fraction form
    660,696.40/991,044.60 = 544,056.40/x
  3. Step 3: Cross multiply
    660,696.40x = 991,044.60 × 544,056.40
  4. Step 4: Simplify right side
    660,696.40x = 539,184,157,315.44
  5. Step 5: Solve for x
    x = 539,184,157,315.44/660,696.40
  6. Step 6: Final answer
    x = 816,084.60

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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.