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Finding the Fourth Proportional to 611,784.60, 917,676.90 and 611,784.60

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Solution

The fourth proportional to 611,784.60, 917,676.90 and 611,784.60 is: 917,676.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,784.60 : 917,676.90 = 611,784.60 : x
  2. Step 2: Convert to fraction form
    611,784.60/917,676.90 = 611,784.60/x
  3. Step 3: Cross multiply
    611,784.60x = 917,676.90 × 611,784.60
  4. Step 4: Simplify right side
    611,784.60x = 561,420,595,195.74
  5. Step 5: Solve for x
    x = 561,420,595,195.74/611,784.60
  6. Step 6: Final answer
    x = 917,676.90

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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.