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Finding the Fourth Proportional to 520,091.10, 779,261.85 and 444,858.30

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Solution

The fourth proportional to 520,091.10, 779,261.85 and 444,858.30 is: 666,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,091.10 : 779,261.85 = 444,858.30 : x
  2. Step 2: Convert to fraction form
    520,091.10/779,261.85 = 444,858.30/x
  3. Step 3: Cross multiply
    520,091.10x = 779,261.85 × 444,858.30
  4. Step 4: Simplify right side
    520,091.10x = 346,661,101,845.86
  5. Step 5: Solve for x
    x = 346,661,101,845.86/520,091.10
  6. Step 6: Final answer
    x = 666,539.19

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1.5x scale

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.