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Finding the Fourth Proportional to 1,196,960, 1,651,804.84 and 660,416

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Solution

The fourth proportional to 1,196,960, 1,651,804.84 and 660,416 is: 911,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,960 : 1,651,804.84 = 660,416 : x
  2. Step 2: Convert to fraction form
    1,196,960/1,651,804.84 = 660,416/x
  3. Step 3: Cross multiply
    1,196,960x = 1,651,804.84 × 660,416
  4. Step 4: Simplify right side
    1,196,960x = 1,090,878,345,213.44
  5. Step 5: Solve for x
    x = 1,090,878,345,213.44/1,196,960
  6. Step 6: Final answer
    x = 911,374.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.