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Finding the Fourth Proportional to 555,636.12, 831,080.61 and 463,893.90

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Solution

The fourth proportional to 555,636.12, 831,080.61 and 463,893.90 is: 693,859.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,636.12 : 831,080.61 = 463,893.90 : x
  2. Step 2: Convert to fraction form
    555,636.12/831,080.61 = 463,893.90/x
  3. Step 3: Cross multiply
    555,636.12x = 831,080.61 × 463,893.90
  4. Step 4: Simplify right side
    555,636.12x = 385,533,225,387.28
  5. Step 5: Solve for x
    x = 385,533,225,387.28/555,636.12
  6. Step 6: Final answer
    x = 693,859.19

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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.