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Finding the Fourth Proportional to 611,771.10, 917,656.65 and 611,771.10

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Solution

The fourth proportional to 611,771.10, 917,656.65 and 611,771.10 is: 917,656.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,771.10 : 917,656.65 = 611,771.10 : x
  2. Step 2: Convert to fraction form
    611,771.10/917,656.65 = 611,771.10/x
  3. Step 3: Cross multiply
    611,771.10x = 917,656.65 × 611,771.10
  4. Step 4: Simplify right side
    611,771.10x = 561,395,818,192.82
  5. Step 5: Solve for x
    x = 561,395,818,192.82/611,771.10
  6. Step 6: Final answer
    x = 917,656.65

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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.